How much time, on average, would a server need to spend on a customer to achieve a service rate of 20 customers per hour?

Answers

Answer 1

Answer:

3 hour 18 minutes or 3 hour

Explanation:

According to the given situation, the computation of time on average is shown below:-

The Average waiting time in the system

= [tex]\frac{1}{\mu} -\gamma[/tex]

Now we will put the values into the above formula to reach the time on average which is here below:-

[tex]= \frac{1}{20} - 1[/tex]

[tex]= \frac{1}{19}[/tex]

= 0.053 × 60 minutes

= 3 hours 18 minutes

We assume [tex]\gamma[/tex] is 1 hour

Therefore for computing the time on average we simply applied the above formula.


Related Questions

Harry forms the Nectarine Corporation during the 2019 tax year. To form the corporation, Harry transfers assets having a fair market value of $650,000 to Nectarine Corporation for 100 percent of the corporation's stock. Harry's adjusted basis in the assets transferred was $350,000 and Nectarine Corporation assume a $200,000 mortgage on the assets. If the fair market value of the stock received by Harry is $450,000, what is his basis in the stock received from the corporation

Answers

Answer:

150000

Explanation:

The question says that Harry received a fair market value = 450000 dollars

Meanwhile he transferred 650000 dollars of assets

Fair value of assets = 650000 - 200000 = 450000

Harry's adjusted basis = 350000

Therefore the share received will be:

350,000 - 200,000

= 150,000 dollars.

Harry's basis in the stock received from the corporation is $150,000.

Thank you!

A sole proprietor owned an office building with a cost of $300,000 and accumulated depreciation of $40,000, using modified accelerated cost recovery system (MACRS) straight-line depreciation. In the current year, she sold the building for $320,000. What is the unrecaptured Section 1250 gain from this sale, if any

Answers

Answer:

The Correct Answer:

$40,000

Explanation:

IRC Section 1250 requires that excess depreciation (actual depreciation in excess of straight-line depreciation) be recaptured as ordinary income. Since the property has sold for more than the adjusted basis ($300,000 − $40,000 = $260,000 adjusted basis), the initial gains are recaptured based on the original purchase price of $300,000.

This makes the first $40,000 of the profit subject to the unrecaptured Section 1250 gain while the remaining $20,000 is considered regular long-term capital gains.

How soon following the occurrence of a covered loss must an insured submit written proof of such loss to the insurance company?

Answers

Answer:

The answer is: Within 90 days; about 3 months.

Following is information on two alternative investments being considered by Jolee Company. The company requires a 6% return from its investments. (PV of $1, FV of $1, PVA of $1, and FVA of $1). (Use appropriate factor(s) from the tables provided.) Project A Project B Initial investment $ (174,325 ) $ (152,960 ) Expected net cash flows in year: 1 41,000 44,000 2 60,000 53,000 3 72,295 68,000 4 87,400 81,000 5 59,000 30,000For each alternative project compute the net present value.

Answers

Answer and Explanation:

The computation of the net present value is presented in the attachment below:

For project A, the net present value is $91,771.53 and for project B, the net present value is $79,390.69

It is computed after considering the discounting factor that comes from

= 1 ÷ (1 + discount rate)^number of years

for year 1, it is

= 1 ÷ (1 + 0.06)^1

The same applied for the remaining years

​Gladiator USA, a tire​ manufacturer, guarantees its tires against defects for five years or​ 60,000 miles, whichever comes first. Suppose USA can expect warranty costs during the​ five-year period to add up to of sales. Assume that a USA dealer in​ Denver, Colorado, made sales of during 2018. ​Gladiator USA received cash for ​% of the sales and took notes receivable for the remainder. Payments to satisfy customer warranty claims totaled during 2018. Record the​ sales, warranty​ expense, and warranty payments for Gladiator USA.

Answers

Answer:

DR Cash............................................$96,450  

DR Notes receivable........................$546,550  

CR Sales revenue...................................................$643,000

(To record sales)  

DR Warranty expense .............................$32,150  

CR Warranty liability.................................................$32,150

(To record Warranty Expense)

 

DR Warranty liability.................................$20,000  

CR Cash......................................................................$20,000

(To record Warranty Claim Payments)  

Explanation:

Cash = 15% * $643,000

= $96,450

Notes Receivable = 643,000 - 96,450

= $546,550  

Warranty Expense = 5% x $643,000

= $32,150

A restaurant owner just found out that his pizza bistro is losing money. What is one possible explanation for this loss

Answers

Answer:

Explanation:

There could be multiple reasons as to why the pizza bistro is losing money.

Waste not being counted accurately.

Food being replaced for wrong orders and not being accounted for.

Theft.

Orders not being entered correctly.

Fredo, Inc., purchased 10% of Sonny Enterprises for $1,000,000 on January 1, 2018. Sonny recognized a total of $340,000 net income during 2018, paid $24,000 of dividends to Fredo during 2018, and at December 31, 2018, the market value of the Sonny investment increased to $1,034,000. Required: Prepare the journal entries necessary to account for the Sonny investment, assuming that Fredo (1) lacks significant influence or (2) has significant influence over the operating and financial policies of the investee.
Required 1
Record the entry for investment in Sonny Enterprises.
Record the entry for cash dividend received.
Record the net unrealized holding gain or loss for an available-for-sale investment.
Required 2:
Record the entry for investment in Sonny Enterprises.
Record the revenue from Sonny Enterprise during 2018.
Record the receipt of dividend during 2018.

Answers

Answer and Explanation:

The Journal entry is shown below:-

As per requirement 1

1. Investment in Sonny Enterprises Dr, $1,000,000

            To Cash $1,000,000

(Being investment is recorded)

2. Cash Dr, $24,000

          To Dividend revenue $24,000

(Being cash dividend received is recorded)

3. Fair value adjustment Dr, $34,000

            To Unrealized holding gain or loss - OCI $34,000

(Being investment at fair value is recorded)

As per requirement 2

1. Investment in Sonny Enterprises Dr, $1,000,000

           To Cash $1,000,000

(Being investment is recorded)

2. Investment in Sonny Enterprises Dr, $34,000

        To Investment Income $34,000 ($340,000 × 10%)

(Being revenue from Sonny is recorded)

3. Cash Dr, $24,000

            To Investment in Sonny Enterprises $24,000

(Being the receipt of dividend is recorded)

What problems does the Singaporean system of emphasizing health savings accounts most directly address?

Answers

Answer:

I. The funding gap in the health care sector

II. Universal health care coverage

III. Access to medical care

Explanation:

The Singaporean health care savings account system has really helped to solve the problems associated with health care funding in the country, it has also helped the country to attain a universal health care for its citizens as it was rated in 2014 by Bloomberg as the country with the most efficient health care system in the world. The system has helped to address the issues of non-catastrophic health outcomes and helped to increase the life expectancy of its citizens.

For each of the following cases determine the ending balance in the inventory account. a. Jill’s Dress Shop had a beginning balance in its inventory account of $44,500. During the accounting period, Jill’s purchased $88,500 of inventory, returned $5,900 of inventory, and obtained $840 of purchases discounts. Jill’s incurred $1,180 of transportation-in cost and $690 of transportation-out cost. Salaries of sales personnel amounted to $35,500. Administrative expenses amounted to $40,100. Cost of goods sold amounted to $91,300.b. Ken’s Bait Shop had a beginning balance in its inventory account of $8,000. During the accounting period Ken’s purchased $36,900 of inventory, obtained $1,200 of purchases allowances, and received $360 of purchases discounts. Sales discounts amounted to $640. Ken’s incurred $900 of transportation-in cost and $260 of transportation-out cost. Selling and administrative cost amounted to $12,300. Cost of goods sold amounted to $33,900.

Answers

Answer:

a) Jill's

beginning inventory = $44,500

purchases  = $88,500 - $5,900 - $840 = $81,760

transportation in expenses = $1,180

total inventory costs = $127,440

cost of goods sold = $91,300

ending inventory = $127,440 - $91,300 = $36,140

b) Ken's

beginning inventory = $8,000

purchases = $36,900 - $1,200 - $360 = $38,460

transportation in expenses = $900

total inventory costs = $47,360

cost of goods sold = $33,900

ending inventory = $47,360 - $33,900 = $13,460

Last year, you purchased a stock at a price of $78.00 a share. Over the course of the year, you received $2.70 per share in dividends and inflation averaged 3.2 percent. Today, you sold your shares for $82.20 a share. What is your approximate real rate of return on this investment?

Answers

Answer:

5.65%

Explanation:

Last year a stock of $78.00 was bought

During the period of one year $2.70 was received in dividend and inflation averaged 3.2%

Today the shares was sold for $82.20

The first step is to calculate the nominal return

= ($82.20-$78.00+$2.70)/$78.00

= 6.9/78

= 0.0885×100

= 8.85%

Therefore, the approximate real rate can be calculated as follows

= 8.85%-3.2%

= 5.65%

Hence the approximate real rate of return on this investment is 5.65%

A corporate bond currently yields 8.5%. Municipal bonds with the same risk, maturity, and liquidity currently yield 5.5%. At what tax rate would investors be indifferent between the two bonds?

Answers

Answer: 35.29%

Explanation:

Municipal Bonds are attractive in that they give the tax benefit of being tax exempt whereas a corporate bond is liable for taxation. The tax rate that will therefore make an investor indifferent between the two bonds is the one that will equate the Corporate bond's yield net of tax to the yield on the Municipal bond.

5.5% = 8.5% * ( 1 - x)

5.5% = 8.5% - 0.085x

0.085x = 8.5% - 5.5%

0.085x = 3%

x = 35.29%

Fetzer Company declared a $0.55 per share cash dividend. The company has 200,000 shares authorized, 190,000 shares issued, and 8,000 shares in treasury stock. The journal entry to record the payment of the dividend is:

Answers

Answer:

Please see journals below

Explanation:

Retained earnings Dr $104,000

Common dividend payable Cr $104,000

Common dividend payable Dr $104,000

Cash Cr. $104,000

Retained earnings Dr $100,100

Common dividends payable Cr $100,100

Common dividends payable Dr $100,100

Cash Cr $100,100

Retained earnings Dr $110,000

Common dividends payable Cr $110,000

Working

Dividends payable

= 190,000 × $0.55

= $104,000

Common dividend payable

= $0.55 × (190,000 shares - 8,000 shares)

= $100,100

Which one of the following is an example of cash flows from operating activities? Multiple Choice Proceeds from collecting the principal amounts of loans. Repayment of principals on loans. Proceeds from the issuance of bonds and notes payable. Payments to acquire equity securities of other companies. Receipts of cash from sales.

Answers

Answer:

Receipts of cash from sales.

Explanation:

Operating activities in the cash flow statement refers to that statement in which the cash sales, cash payments are recorded. These transactions are recorded when the company use the direct method and for an indirect method the other things should be considered as changes in working capital, depreciation expenses, profit and loss on sales of fixed assets, etc

Therefore the last option is correct

The example of cash flows from operative activities in the query above is receipts of cash from sales. The correct option that matches with the statement above is E.

Cash flows from operating activities refers to as the cash that is either incoming or outgoing from the business organization from activities like sales, purchase, etc.

The cash flow of a business organisation refers to the net balance of monies received or sent/spent by such organization for the purpose of carrying the normal business activities.

The receipts and expenditures made in cash will account to cash flows and any accrued income or expense will not form a part of cash flows of an organization.

Receipts from sales in cash will amount to positive cash flow as it is assumed that the goods are sold by the firm at above the cost price of such goods.

Hence, the correct option is E that the receipts of cash from sales which is a normal business activity is an example of cash flow from operating activities.

To know more about cash flows, refer the link below.

https://brainly.com/question/5339442

If the region or country where a company is located is experiencing a labor shortage, what should the company's management do

Answers

Answer:

In a situation where the company established in a region or country is experiencing a labor shortage, the best action to be taken would be to employ labourers from other regions or countries and moved them towards their location. This approach is adopted mostly by construction and hospitality industries.

Explanation:

Ballpark has shares of par common stock outstanding. Ballpark announces a stock split of for1. What is the effect of the​ split?

Answers

Answer:

The answer is 'it increases the number of shares outstanding'

Explanation:

Stock split increases the number of shares outstanding. It causes dilution of earnings per share.

For example, ABC Inc. has 50,000 shares outstanding and it announces a stock split of 3-for- 1.

This means that any shareholder that has 1 will exchange that 1 share for 3 shares. So at the end of the stock split the total number of shares outstanding will be 150,000 shares (50,000 x 3)

The two-step flow supports the notion that consumption styles are primarily influenced by a "trickle-down" or "trickle-up" effect from mass media. Group of answer choices

Answers

Answer: False

Explanation:

The two-step communication is used in situations to explain that messages should be directed by the mass communicators to opinion leaders. Once this is done, the opinion leaders will then deliver such messages to other people.

The the notion that consumption styles are primarily influenced by a "trickle-down" or "trickle-up" effect from mass media is wrong.

This year Baldwin achieved an ROE of 5.9%. Suppose management takes measures that increase Asset turnover (Sales/Total Assets) next year. Assuming Sales, Profits, and financial leverage remain the same, what effect would you expect this action to have on Baldwin's ROE

Answers

Answer:

ROE will increase

Explanation:

This action will cause an increase in Baldwin's ROE

ROE is the same as return on Equity. The return on equity is equal to the net profit margin multiplied by asset turnover which is also multiplied by equity multiplier.

From the above, if asset turnover is being increased by measures taken by the management, the ROE will also have to increase too. Firms will have to be generating more sales per units of the assets that they own.

A customer opens a new margin account with the following position:

Long: 1,000 XYZ Cmn
Mkt Value: $20,000
Debit: $10,000

If the market value rises to $22,000, how much SMA is created?

Answers

Answer:

$1,000

Explanation:

The above means that for every $1 increase in the market value in a long margin account, the SMA increases by $0.50

If the market value rises to $22,000, the account will show

Long market value - Debit = Equity % SMA

$22,000 - $10,000 = $12,000

Against $22,00 of market value, 50% can be borrowed or $11,000. Since the debit is $10,000, an additional $1,000 can be borrowed . This is the SMA

A retired customer has an existing stock portfolio held in a cash account. He has heard that "leveraging" his portfolio can increase his return. The portfolio holds blue chip stocks that pay current dividends. He wants to transfer the positions to a margin account and use them as collateral to buy more stocks of the same blue chip companies. Which statement is TRUE

Answers

Answer: C. This is not an appropriate strategy because the customer's income will decline

Explanation:

A. The options for the question are:

This is an appropriate strategy that will increase the customer's income

B. This is not an appropriate strategy because the customer's tax liability will increase if the securities appreciate and are sold

C. This is not an appropriate strategy because the customer's income will decline

D. This is an appropriate strategy because the customer has the potential for larger capital gains

From the information that have been provided in the question, we can see that the customer needs income but based on the information that have been provided in the question, the interest that will be charged will eat up the dividend paid by the the stock.

Therefore, this is not an appropriate strategy because the customer's income will decline.

Inefficient output and price, few choices for consumers, and rent seeking are all problems associated with

Answers

Answer: c. Monopolies.

Explanation:

Because Monopolies have no competition, the main incentive to be efficient is missing. This leads to a situation where Monopolies are not as efficient as they are to be in production as well as price because they will charge a price that does not match the optimal quantity associated with that price.

With no or few competition in the market, consumers will not have a lot of choices on entities to source the good from and there is a problem of Rent seeking with Monopolies as well. Rent seeking for monopolies occurs when they charge people above the price they are to charge if they were in a competitive market. They are therefore making more money than they should at the expense of customers.

A piece of equipment (Asset class 15.0) was purchased by the Jones Construction Company. The cost basis was $300,000. Determine the ADS and GDS depreciation deduction for this property each year

Answers

Answer:

Alternative depreciation system (ADS depreciation) per year:

Year                     %                     depreciation expense

1                           8.32%              $24,960

2                          16.67%             $50,010

3                          16.67%             $50,010

4                          16.67%             $50,010

5                          16.67%             $50,010

6                          16.67%             $50,010

7                           8.33%             $24,990

General depreciation system (GDS depreciation) or MACRS per year:

Year                     %                     depreciation expense

1                            20%                $60,000

2                           32%                $96,000

3                           19.20%            $57,600

4                           11.52%             $34,560

5                           11.52%             $34,560

6                           5.76%              $17,280

An investor holds a 10 year bond pays a coupon rate of 9%. The yeid to maturity of the bond is 10% . The bond is trading:

Answers

Answer:

the bond is trading at a discount

Explanation:

There is an inverse relationship between the yield and the price of the bond.

As the yield goes up, the price of the bond goes down and as the yield goes down, the price of the bond goes up.

The yield - 10%, is greater than the coupon rate - 9%, the price will be less than the par value, and we say that the bond is trading at a discount.

True or False: The modern view of the Phillips curve indicates that to keep the unemployment rate low, policymakers should aggressively fight inflation to rapidly lower the inflation rate.

Answers

Answer:

False

Explanation:

False, the given statement is false because the Philips curve shows the inverse relationship between the inflation rate and unemployment. If the curve represents the inflation on the verticle axis and unemployment on the horizontal axis, then we can see that if the inflation rises, then unemployment falls. However, if inflation falls, then unemployment rises. Therefore, if the government wants to keep the unemployment low then it should fight with inflation.

Requirement 3. If Radig Travel expects each helicopter to​ make, on​ average, 1,200 ​round-trips in the coming​ year, what should its estimated operating budget for the helicopter fleet​ be? Radig Travel's estimated operating budget for all 8 helicopters in the fleet combined should b

Answers

Answer:

the first part of the question is missing:

"Radig Travel offers helicopter service from suburban towns to John F. Kennedy International Airport in New York City. Each of its 8 helicopters makes between 1,000 and 2,000 round-trips per year. The records indicate that a helicopter that has made 1,000

Round-trips in the year incurs an average operating cost of $300 per round-trip, and one that has made 2,000 round-trips in the year incurs an average operating cost of $250 per round-trip.

Using the high-low method, estimate the annual operating costs:"

variable costs per trip (per helicopter) =  ($500,000 - $300,000) / (2,000 - 1,000) = $200,000 / 1,000 = $200 per trip

fixed costs = $500,000 - (2,000 x $200) = $500,000 - $400,000 = $100,000

the estimated operating budget per helicopter = $100,000 + (1,200 x $200) = $100,000 + $240,000 = $340,000

operating budget for the whole fleet (8 helicopters) = 8 x $340,000 = $2,720,000

The current price of a certain non-dividend-paying stock is $120.00. The future 2 pri ce is characterized by the following probability distribution:
EVENT PROBABILITY FUTURE PRICE P RETURN R
A 0.18 $180 ?
B 0.09 $108 ?
C 0.3 $90 ?
D 0.25 $81 ?
E ? $225
Calculate [i] the expected future price, [ii] the return in each of the five events, and [iii] Calculate l the expected return. Recall that for a stock which does not pay dividends, return is just ain divided by the initial price. Expected return can be calculated in two ways:
[a]: You could calculate the return to be realized in each of the five events, and then calculate the expected value of the return, or,
[b]: You could calculate the expected price first, and then use the possible fact that:
E(R) = E(P)/Po - 1

Answers

Answer:

Non-Dividend-Paying Stock

i) Calculation of the expected future price:

EVENT   PROBABILITY   FUTURE PRICE P   RETURN R

A                 0.18                      $180                   $32.40

B                 0.09                     $108                     $9.72

C                 0.3                        $90                   $27.00

D                0.25                       $81                   $20.25

E                 0.18                    $225                   $40.50

Total           1.0                 $129.87                 $129.87

Future price = the expected returns = $129.87

ii) Calculation of the return in each of the five events:

EVENT   PROBABILITY   FUTURE PRICE P   RETURN R

A                 0.18                      $180                   $32.40

B                 0.09                     $108                     $9.72

C                 0.3                        $90                   $27.00

D                0.25                       $81                   $20.25

E                 0.18                    $225                   $40.50

iii) Calculation of the expected return:

EVENT   PROBABILITY   FUTURE PRICE P   RETURN R

A                 0.18                      $180                   $32.40

B                 0.09                     $108                     $9.72

C                 0.3                        $90                   $27.00

D                0.25                       $81                   $20.25

E                 0.18                    $225                   $40.50

Total           1.0                                                 $129.87

Explanation:

a) Data & Calculations:

EVENT   PROBABILITY   FUTURE PRICE P   RETURN R

A                 0.18                      $180                      ?

B                0.09                      $108                      ?

C                 0.3                        $90                      ?

D                0.25                       $81                      ?

E                  ?                        $225

If stock A does not pay dividend, it will attract capital appreciation which compensates for the unpaid dividends since the company has increased assets over liabilities.  When the assets grow more than the liabilities from the reinvestment of the profits, the net value of the business which is the equity increases.  This capital growth belongs to the stockholders and  is distributable to them in the form of the future price of the stock, which appreciates with the capital growth.

Find the net present value of a project that has cash flows of −$12,000 in Year 1, +$5,000 in Years 2 and 3, −$2,000 in Year 4, and +$6,000 in Years 5 and 6. Use an interest rate of 12%. Find the interest rate that gives a net present value of zero.

Answers

Answer:

NPV = $2,000

IRR = 19.19%

Explanation:

Net present value is the present value of after tax cash flows from an investment less the amount invested.  

NPV can be calculated using a financial calculator  

Only firms with a positive NPV should accept the project because a negative NPV indicates that the project would be unprofitable for the firm

the interest rate that gives a net present value of zero is the IRR

Internal rate of return is the discount rate that equates the after tax cash flows from an investment to the amount invested

IRR can be calculated using a financial calculator

Cash flow for year 1 =  −$12,000

Cash flow for year 2 =  $5,000

Cash flow for year 3 =  $5,000

Cash flow for year 4 =  −$2,000

Cash flow for year 5 =  $6,000

Cash flow for year 6 =  $6,000

I = 12%

NPV = $2,000

IRR = 19.19%

To find the NPV using a financial calculator:

1. Input the cash flow values by pressing the CF button. After inputting the value, press enter and the arrow facing a downward direction.

2. after inputting all the cash flows, press the NPV button, input the value for I, press enter and the arrow facing a downward direction.  

3. Press compute  

To find the IRR using a financial calculator:

1. Input the cash flow values by pressing the CF button. After inputting the value, press enter and the arrow facing a downward direction.

2. After inputting all the cash flows, press the IRR button and then press the compute button.  

Kelley Company reports $1,250,000 of net income for 2017 and declares $175,000 of cash dividends on its preferred stock for 2017. At the end of 2017, the company had 380,000 weighted-average shares of common stock. 1. What amount of net income is available to common stockholders for 2017

Answers

Answer:

Net income available to common stockholders is $1,075,000

Explanation:

Net Income                            $1,250,000

To Preferred Shareholders   $175,000    

Net income available to       $1,075,000

common stockholders

Basic earnings per share = Net income available to common stockholders / weighted average shares of common stock

Basic earnings per share = $1,075,000 / 380,000

Basic earnings per share = $2.8290 per share.

At the beginning of this year, daily consumption of gasoline in the US amounted to 344 million gallons. It is estimated that for every 10% increase in the price of gasoline, quantity demanded falls by 1.9%. By the end of this year, the price of gasoline is expected to increase by 40 cents from $ 3.05 per gallon. Based on this information, what is the expected quantity demanded (QD) for gasoline at the end of this year

Answers

Answer:

335.43 million gallons

Explanation:

price elasticity of demand (PED) = % change in quantity demanded / % change in price

PED = -1.9% / 10% = -0.19, very inelastic

expected price increase $0.40

% change in price = ($3.45 - $3.05) / $3.05 = 13.11%

% change in quantity demanded:

-0.19 = D / 13.11%

D = 2.49%

quantity demanded will decrease by 2.49%, from 344 million gallons to 335.43 million gallons

Beta is Question 10 options: a) A measure of the volatility of returns on an individual stock relative to the market b) Relates the risk-return trade-offs of individual assets to the market returns c) The computed cost of capital determined by multiplying the cost of each item in the optimal capital structure by its weighted presentation in the overall capital structure and summing up the results d) The cost of the last dollar of funds raised

Answers

Answer: a) A measure of the volatility of returns on an individual stock relative to the market

Explanation:

Beta is indeed a measure of the volatility of returns on an individual stock relative to the return on the market as a whole.

It is used in the Capital Asset Pricing Model which enables for the calculation of the stock's expected return.

Market Beta is always 1. Therefore betas measure shows how much more or less volatile than the market return, the stock return is. For instance, a beta of 2 means that the stock's returns are twice as volatile as the markets and a beta of 0.5 means the returns are only half as volatile as the market.

The linear correlation coefficient of a set of data points is -0.9.
a. Is the slope of the regression line positive or negative?
b. Determine the coefficient of determination.

Answers

Answer:

1. The slope is negative.

2. 0.81

Explanation:

The slope of the regression line is definitely negative

A linear equation has its regression line as

T = a + bc

The slope of the regression line is known as b.

From the question, b = -0.9

Therefore the slope of the regression line is negative.

B. Coefficient of determination = r²

r =(-0.90)

r² = 0.81

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