Dobie works as a window washer, and finds lots of time to think while working. He notices when windows are cracked, and fells that the number of cracked windows has been increasing. He wants to determine if this increase is statistically significant by applying a control chart. He collected data for the past 10 days measuring the number of cracked windows he observed per shift.
What is the UCL?
a. 5.90
b. 59.00
c. 13.19
d. 2.42
The LCL?
a. 0
b. 20.14
c. 5.90
d. 2014
Is the number of observed cracked windows within control limits?
a. No
b. Yes
Day Day Day Day Day Day Day Day Day Day
# of cracks 1 2 3 4 5 6 7 8 9 10
3 4 2 4 6 5 8 8 7 12
Dobie noted that the windows he washes may have multiple panes per window. So, rather than counting cracked windows, Dobie instead converts the prior data into cracked window panes. Based on the data below:
Day Day Day Day Day Day Day Day Day Day
# of cracks 1 2 3 4 5 6 7 8 9 10
6 11 4 12 13 12 11 13 7 19
What is the UCL?
a. 13.19
b. 23.66
c. 20.66
d. 10.80
The LCL?
a. 0
b. 10.8
c. 0.94
d. 3.29
Is the number of observed cracked window panes within control limits?
a. Yes
b. No
Is Dobie’s theory that the number of cracked window panes is increasing valid?
a. No
b. Yes

Answers

Answer 1
Ans is c because the b and a has to be sub and u get the ans as c

Related Questions

20 POINTS!!!!!The monthly salary of an employee with 33 hours of training can be written as

Answers

Answer:
B

Explanation:

what is the square root of 377.68

Answers

Answer:

19.4339908408

19.434...... and round down

rewrite
3/20
and
2/15
so that they have a common denominator.

Answers

the answer can be that they can have a common denominator at 9/60 and 12/60?

Helpppppppppppppppppppp

Answers

Answer:

192.5 m²

Step-by-step explanation:

The formula for calculating the area if a circle

= πr²

Find the area of the larger circle first, then subtract the area of the smaller circle.

The area of the larger circle

= π×(21÷2)²

= 346.4 m² (rounded to the nearest tenth)

The radius of the smaller circle

= 21÷2 - 3.5

= 7 m

The area of the smaller circle

= π×7²

= 153.9 m² (rounded to the nearest tenth)

The area of the shaded region

= 346.4 - 153.9

= 192.5 m²

Anyone smart at math?

Answers

Answer:

The function f(x) = 4.95x represents the cost to purchase x pounds of chocolate from a candy company. The function g(x) = 0.99x + 2.25 models the cost to ship x pounds of chocolate from the company. Write a function, h(x), that models the total cost to purchase and ship x pounds of chocolate from the company.

Step-by-step explanation:

boom it is big now

Please help

the diagram shows a cube and a cuboid

Answers

Answer:

2197 cm³

Step-by-step explanation:

surface area of cuboid = 2 * (5*9 + 33*9 + 33*5) = 1014

surface area of cube = 6 * x²   .... x: side length of cube

6x² = 1014

x² = 169

x = 13

volume of cube = x³ = 13³ = 2197 cm³

A grocery store recently sold 10 cartons of yogurt, of which 5 were raspberry. What is the experimental probability that the next carton of yogurt sold will be raspberry? ​

Answers

Answer:

Step-by-step explanation:

10/16

Evaluate the following equation for the given x value. Round your answer to
the nearest hundredth. *
у
600(0.732)"; x = 3

Answers

Answer:

585856859686

Step-by-step explanation:

546786676

find the next number 2,5,12,25,54 ​

Answers

Answer:

Step-by-step explanation:

The next number is 110

A random sample of 15 college soccer players were selected to investigate the relationship between heart rate and maximal oxygen uptake. The heart rate and maximal oxygen uptake were recorded for each player during a training session. A regression analysis of the data was conducted, where heart rate is the explanatory variable and maximal oxygen uptake is the response variable.
If a 95 percent confidence interval is constructed for the slope of the population regression line, which of the following is a condition that must be checked?
A) The true relationship between heart rate and maximal oxygen uptake is linear.
B) The correlation between heart rate and maximal oxygen uptake is not equal to zero.
C) The confidence interval is not biased.
D) The point (x_,y_) falls on the regression line. The X and Y have a line on top.
E) The slope is not equal to zero.

Answers

Answer:

C) The confidence interval is not biased.

Step-by-step explanation:

When a relationship between two variables is observed the confidence interval should not be biased. If the confidence interval is found to be biased then the observed results will be reliable and accurate. Regression analysis of  heart rate and maximal oxygen uptake is analyzed and the correlation will not be equal to zero. This means there will be some correlation between the two variables.

The necessary condition that must be checked is: Option B) The correlation between heart rate and maximal oxygen uptake is not equal to zero

What are explanatory and response variables?

Explanatory variables are also called independent variables and they explain variations in the response variables. They are not dependent on any directly considered variable in the considered situation.

The response variables are also called dependent variables and their values depend on the values of the explanatory variables.

For this case, it is considered that:

Explanatory variable: Heart rateResponse variable: Maximal oxygen uptake

It is not specified that regression is linear but specified that there is regression analysis was conducted. Regression is useful only if there is any correlation between two variables.

Thus, the most important condition that must be checked is:

Option B) The correlation between heart rate and maximal oxygen uptake is not equal to zero

(because 0 correlation shows that variables are independent, so no influence of explanatory variable on response variable and they are independently taking up their values compared to each other).

Thus, the necessary condition that must be checked is: Option B) The correlation between heart rate and maximal oxygen uptake is not equal to zero

Learn more about correlation here:

https://brainly.com/question/10725272

Explain how this diagram shows
That 6(3 + 4) = 6(3) + 6(4)

Answers

Answer:

[tex]{\huge\blue{\fbox{{࿐αɴѕωєя࿐}}}}[/tex]

[tex]6(3 + 4) = 6(3) + 6(4) \\ 6(7) = 6(3) + 6(4) \\ 6 \times 7 = 6 \times 3 + 6 \times 4 \\ 42 = 18 + 24 \\ 42 = 42[/tex]

→ LHS = RHS

•°• Hence proved.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

How to write 4 508 300
in words?​

Answers

four million five hundred and eight thousand three hundred

What is the missing number
NO LINKS PLEASE

Answers

Answer:

1

Step-by-step explanation:

Remember that the equation to graph a linear graph or line is y=mx+b

m is your slope and b is your y intercept. Since your line hits the y-axis at y=1, b=1.

a firm has ebit of 1,000,000 and depreciation expense of 400,000. fixed charges total 600,000. interest expense totals 70,000. what is the firm cash coverage ratio. ​

Answers

Answer:

The firm's fixed-charge coverage ratio is 7.89 times

Explanation:

Fixed charge coverage ratio : This ratio deals with fixed payments like: interest payments, lease payments which is before earning before income and taxes.

The formula to compute the fixed charge coverage ratio is shown below:

= (EBIT + Fixed charges) ÷ (Fixed charges + interest expense)

= ($400,000 + $50,000) ÷ ($50,000 + $7,000)

= $450,000 ÷ $57,000

= 7.89 times

The total of fixed charge include depreciation expense also. Thus it would not be taken into computation part.

Hence, the firm's fixed-charge coverage ratio is 7.89 times

Which phrase describes the shape of the data?
.
.
.
12
13
14
15
10
17
18
A. Symmetric, not bell-shaped
B. Not symmetric, bell-shaped
C. Not symmetric, not bell-shaped
D. Symmetric bell-shaped

Answers

Answer:

C. Not symmetric; not bell-shaped.

Step-by-step explanation:

In a symmetric data distribution, the shape on the left side is almost the same as the shape on the right side of the middle. In this type of data distribution, if different measure of centers are calculated (mean, median, and mode), they will have a similar figures that are close together. Symmetric distributions are bell-shaped.

On the other hand, if the data distribution is not symetric, it means the left and the right side of the distribution are not equal and do not have the same shape.

The data in the dot plot above is considered as NOT SYMMETRIC. Also, it is not bell-shaped.

Answer:

c

Step-by-step explanation:

HELP IM TIMED. ILL MARK BRAINLIEST!

Answers

Answer:

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Given that O is
the center of the
circle and line
segment XY is a
tangent line, find
the measure of
angle BAX.

Answers

Answer:

Step-by-step explanation:

ahh  30° is the mystery angle . sooo

180-30 = 150  that angle BOA

then the other two angle are each 15°

so then BAX is 90-15=75°

:)

Carl can do a particular job in 4 hours. It takes Mike 7 hours to do the same job. Approximately how long will it take them to do the same job working together?​

Answers

Answer:

28/11hr or about three hr

Step-by-step explanation

1/4+1/7=11/28

or 28/11 hr

Answer:

2 hours and 32.7 minutes. This is a good problem to become familiar with. It comes up in physics quite frequently.

Step-by-step explanation:

1 job/4 hours + 1 job / 7 hours = 1/x

1/4 + 1/7 = 1/x

(7 + 4)/28 = 1/x

11/28 = 1/x

x / 1 = 28/11

x = 2.54 hours repeating.

1 hour = 60 minutes

0.54 hours = x minutes

1/.54 = 60/x

x = 0.54 * 60

x = 32.7 minutes

The price of a stock went from $100 to $99.80. What was the percentage of decrease?

Answers

.20 is the correct answer because 100-99.80

A grocer wants to mix two kinds of coffee. One kind sells for $0.85 per pound, and the other sells for $2.70
per pound. He wants to mix a total of 21 pounds and sell it for $0.95 per pound. How many pounds of
each kind should he use in the new mix? (Round off the answers to the nearest hundredth.)

Answers

Answer:

x = $0.85 per pound = 19.85 pounds

y = $2.70 per pound = 1.14 pounds

Step-by-step explanation:

Let

x = $0.85 per pound

y = $2.70 per pound

x + y = 21 (1)

0.85x + 2.70y = 19.95 (2)

From (1)

x = 21 - y

Substitute x = 21 - y into (2)

0.85x + 2.70y = 19.95 (2)

0.85(21 - y) + 2.70y = 19.95

17.85 - 0.85y + 2.70y = 19.95

- 0.85y + 2.70y = 19.95 - 17.85

1.85y = 2.1

y = 2.1 / 1.85

y = 1.14

Substitute y = 1.14 into (2)

0.85x + 2.70y = 19.95

0.85x + 2.70(1.14) = 19.95

0.85x + 3.078 = 19.95

0.85x = 19.95 - 3.078

0.85x = 16.872

x = 16.872 / 0.85

x = 19.85

x = $0.85 per pound = 19.85 pounds

y = $2.70 per pound = 1.14 pounds

The cost, in dollars, of parking a car in a busy downtown area for h hours is $20 + $2h.
Which statement is correct?

Answers

Answer:

y= 20h + 2

   its $20 times the hours for every 2 hours

Determine the median of the following numbers: 8, 11, 11, 12, 13, 15, 16, 16, 18, 21​

Answers

The median of the following numbers is 14

Order the numbers from least to greatest
Since median means middle mark off a number on each side until there is one left. That will be your answer
If it is an even amount of numbers than take the middle two numbers and find the average (mean)
To do so add the numbers and divide by two

Answer:

The median of the following numbers is 14

Step-by-step explanation:

The Louvre pyramid in Paris is built of glass panes. The top row has 4 glass panes, and each row after it has 4 more panes than the previous row. How many panes of glass are in the 16th row?

Answers

Answer:

Number of glass panel in 16th row = 64

Step-by-step explanation:

Given:

Number of glass panel in first row = 4

Each next row added number of glass panel = 4

Find:

Number of glass panel in 16th row

Computation:

An = a + [n-1]d

An = given term = A16

a = first term = 4

n = number of term = 15

d = Common difference = 4

An = a + [n-1]d

An = 4 + [16-1]4

An = 4 + [15]4

An = 4 + 60

An = 64

Number of glass panel in 16th row = 64

Salina's age is one-quarter the age of her aunt. If a represents her aunt's age, which expression represents Salina's
age?
4a
a-4
a+4
A over 4

Answers

Answer:

D. A over 4

Step-by-step explanation:

One quarter is equal to [tex]\frac{1}{4}[/tex]. If her aunt is age 'a', than Salina's age is a/4

Hope this helps.

D. A over 4. I hope this is the correct answer

PLEASE HELPPP!!!!!!!!

Answers

Answer:

A

Step-by-step explanation:

If you get that right, follow Sammy Revv on Spotify please

Pls help I’ll brainlest

Answers

13/15 because you’re just adding the ones that aren’t blue. Trust me

Answer:

(D) 13/15

Step-by-step explanation:

Well there are 15 marbles in total.

There are 2 marbles that are blue

The qusection asks for the probability of NOT a blue

so 13/15

The variables x and y are inversely proportional, and y = 2 when x = 3. What is the value of y when x = 9?

Answers

Answer:

[tex] \huge \purple{ \boxed{ y = \frac{2}{3} }}[/tex]

Step-by-step explanation:

Since, the variables x and y are inversely proportional.

[tex] \therefore \: y \: \: \alpha \: \: \frac{1}{x} \\ \implies \: y = \frac{k}{x} \\ (k = constant) \\ \implies \: xy = k ...(1)\\ plug \: y = 2, \: \: x = 3 \: in \: equation \: (1) \\ we \: find \\ 2 \times 3 = k \\ k = 6 \\ plug \:k = 6 \: in \: equation \: (1) \\ xy = 6 \\ (this \: is \: the \: equation \: of \: variation) \\ when \: x = 9 \: \: y =? \\ \\ 9y = 6 \\ y = \frac{6}{9} \\ \huge \red{ \boxed{ y = \frac{2}{3} }}[/tex]

-2 x -4 =
please help

Answers

Answer:

8

Step-by-step explanation:

Two negatives mean you make a positive and 4 x 2 is 8

Answer:

8

Step-by-step explanation:

Negative times negative = positive

Cancel out the negative symbol

Now multiply: 2*4=8

what is 873 divided by 35?!!

Answers

873 divided by 35= 24 33/35

What is the area of this green rectangle? | 7 in. 3 in.​

Answers

It would be 21 in. To find this, just multiply the two numbers. Hope this helps!

Answer:

I think 21 in.

7 x 3 = 21

Hope this helps.

Other Questions
Is wetland salt water or fresh water ? Or both Estuary fresh water or salt water ? Or both Ocean salt water or fresh water ? Lake , river , stream , wetland , pond 1. Because marble is so effective in neutralizingacids, it is the main ingredients inover-the-counter stomach medicines such as_______and__________? Please help me! And explain how you got your answer Consider this student response.A 3-column table with 1 row. Column 1 is labeled Text with entry "On December 5, 1955, concerned people in Montgomery, Alabama, refused to ride city buses. They were tired of unfair treatment of African Americans. They demanded equal treatment. This bus boycott was successful. The Supreme Court got involved in 1956. The Supreme Court said segregation laws are not allowed." Column 2 is labeled Details with entry There was a bus boycott in December of 1955. The boycott took place in Montgomery, Alabama. Citizens demanded equal treatment for African Americans. The boycott was successful. The Supreme Court was involved. Segregation was banned in 1956. Column 3 is labeled Paraphrase with entry People held a bus boycott in December of 1955 in Montgomery, Alabama. They demanded equal rights."Which sentence best completes the paraphrase of the passage?a)Thanks to the Supreme Court, the buses started rolling again in 1956 to end the bus boycott.b)When the bus boycott ended, the Supreme Court became involved to decide if segregation laws were legal.c)In 1956, the Supreme Court decided that segregation laws were illegal based on the Constitution.d)The boycott was successful because the Supreme Court banned all segregation laws in 1956. . Which rhetorical strategy is used by Brutus: "There is tears for his love, joy for his fortune, honor for his valor, and death for his ambitio Which equation describes the line??? how do beavers dams help other animals and people How does the US government affect the economy and therefore your life here and in the future? Assignment for Blood vesselsDisorders(Atherosclorosis and varicos veins) diffine types causes clinical featur Shirlee cleans house as a side job, this weekend she made $425. If she puts 15% towards her savings how much will she put in her savings account? what were the steps taken by the committee of public safety to control the french republic? The Diagram below shows rectangle PLUM find the area of PLUM if entering answer as a decimal, round your final answer to the nearest hundredth. Please Help! Rosa earned a total of $34 by selling 17 cups of lemonade. How many cups of lemonade does Rosa need to sell in all to earn $46? Assume the relationship is directly proportional. can you write me a commentary on this poem,The beautiful ocean shines as bright,As the hot sun in the high sky,And the waves roll back,Even when the sky turns pitch black,I really wanted to swim,Even when the oceans came to the brim,don't steal it Find the area of the circle.50.24 in?803.84 in?d= 8 in.25.12 in?12.56 in?200.96 in? What is the connection between the civil rights movement and voting rights in the U.S.? What is manifest Destiny? Use the following information to write sentences two ways, attached andunattached.1. Ellos/ querer/jugar / beisbol2. Maria/poder/cocinar/ la cena3. Ustedes/tener que / limpiar/ el cuarto4. Nosotros/ deber/ hacer/ la tarea5. Yo/ querer/ correr/ la pista ( the track) 76 cm a 52 cm Find the area of the regular pentagon (the answer has one digit after the decimal point) (Need help ASAP, Im taking a test) A researcher is 95% confident that the interval from 5.09 to 10.13 captures x = the true mean amount oftimes models change clothes during a fashion shoot.Is it plausible that the true mean number of times for all models to change clothes during a fashion shoot maybe 102No, this is not a plausible value for the population mean, because 10 is within the 95% confidence intervalNo, this is not a plausible value for the population mean, because 10 is not within the 9596 confidenceintervalYes, this is a plausible value for the population mean, because 10 is within the 95% confidence intervalYes, this is a plausible value for the population mean, because 10 is only a little bit above the upperboundary of the 95% confidence interval.