Hermione thinks she has discovered a protection spell that will reduce the pain of the Cruciatus curse. She believes that a sample of people protected by her spell will rate their pain as less severe than the average person who does not have her protection spell. Her null hypothesis for this study would

Answers

Answer 1

Answer:

There will be no difference in pain ratings from people protected by her spell and people who aren't protected by her spell.

Step-by-step explanation:

The claim in this scenario is the alternative hypothesis, which is what we wish to test ; the alternative hypothesis is thus ; people who are protected by spell will rate their pain as a result of cruciatus curse as less severe than the average person who does not use her protection spell ;

As we know, the null hypothesis is the opposite of the alternative hypothesis and the initial truth, which is ;

The average pain felt by both the user of the pain protections spell and those who do not feel the same amount of pain.


Related Questions

The number of cans the soup kitchen has is represented by the equation, y = -63x + 825, where x represents the number of days and y represents the number of cans. How many cans will the soup kitchen have after 10 days?

Answers

Answer:

this equation means that if your multiple the amount of days by -63 and add 825 you'll get the amount of cans

can substitute 10 in as x so

-63(10)+825

-630+825

195

so the soup kitchen will have 195 cans after 10 days

help asap !!!!!!!!!!​

Answers

Answer:

Diagram 2= 5  

Diagram 3=10

Diagram 4= 15

Diagram 8 would be 35

Step-by-step explanation:

Randy's gross salary is $760 per week. his salary is taxed at 16% what is his net salary ​

Answers

Answer:

$638.4

Step-by-step explanation:

Randy's gross salary (salary without any deduction) = $760

taxed rate =16%

Amount tax paid =tax% of gross income

=16/100 * $760

=$16*760/100

=$12160/100

=$121.6

net salary = gross salary - tax paid

=$760 - $ 121.6

=$638.4

Randy's net salary is $638.40

Randy's gross salary = $760 per week.

Tax paid on his salary = 16%

Net salary is the difference between the salary earned and the amount paid as tax. This will be:

= Salary - Tax

= $760 - (16% × $760)

= $760 - (0.16 × $760)

= $760 - $121.60

= $638.40

Read related link on:

https://brainly.com/question/23421215

An individual has $40,000 to invest: $28,000 will be put into a low-risk mutual fund averaging 6.9% interest compounded monthly, and the remainder will be invested in a high-yield bound fund averaging 9.8% interest compounded continuously.

Required:
a. Write an equation for the total amount in the two investments.
b. Write the rate-of-change equation for the combined amount.
c. How rapidly is the combined amount of the investments growing after 6 months? after 15 months?

Answers

Answer:

a) F(x) = 28,000( 1.00575 )^12x  + 12,000e^0.098x

b)  F'(x ) = 28,000 ( In 1.071224 ) ( 1.071224 )^x + 1176 e^0.098x  dollar per year

c) 3228.94 dollar/year,   3428.73 dollar/year

Step-by-step explanation:

Capital = $40,000

$28,000 = low-risk mutual fund

6.9% monthly compounded interest for the low risk mutual fund

$12,000  = high-risk yield bound fund

9.8% continuously compounded interest

A) Equation for total amount in two investments

F(x) = F1(x) + F2(x) ----- ( 1 )

where :

F1(x) ( future value for monthly compounded interest)

=  28,000( 1 + 0.069/12 )^12x = 28,000 ( 1.00575 )^12x

F2(x) ( future value for continuously compounded interest )

= ( 40,000 - 28,000 )e^0.098x = 12,000 e^0.098x

back to equation 1

F(x) = 28,000( 1.00575 )^12x  + 12,000e^0.098x

B Rate of change equation

f'(x) = d/dx (28,000( 1.00575 )^12x) + d/dx ( 12,000e^0.098x )

∴ f'(x) = 28,000 d/dx (1.00575^12)^x + 12,000 d/dx(b^x)

         = 28,000 ( In 1.071224 ) ( 1.071224 )^x + 12,000 ( In b ) ( b^x )

  f'(x ) = 28,000 ( In 1.071224 ) ( 1.071224 )^x + 1176 e^0.098x  dollar per year

C) Determine how rapidly the combined amount will grow after 6 months and after 15 months

i.e. x = 0.5 , x = 1.25 years

after 6 months

28,000 ( In 1.071224 ) ( 1.071224 )^(0.5) + 1176*e^((0.098(0.50))

=  1993.88  + 1235.06 = 3228.94 dollar/year

after 15 months

28,000 ( In 1.071224 ) ( 1.071224 )^(1.25) + 1176*e^((0.098(1.25 ))

=   2099.47  +  1329.26 = 3428.73 dollar/year

A craftsperson must attach a lead strip around all four sides of a stained glass window that is
8 4/5 in. by
14 17/25 in. before it is installed. Find the length of lead stripping needed.

Answers

9514 1404 393

Answer:

  46 24/25 in

Step-by-step explanation:

Opposite pairs of sides are the same length, so the total length needed is ...

  2(8 4/5 +14 17/25) = 2(8 20/25 +14 17/25) = 2(22 37/25) = 2(23 12/25)

  = 46 24/25 . . . inches

PLEASE HELP WILL MARK YOU!!!

Answers

Answer:

hear is your required answer

Answer:

please see the image given above. hope this helps

Which describes the shape of the distribution of total points in Mr. Price's science class? Please help ​

Answers

Answer:

The distribution is negatively (left) skewed

Step-by-step explanation:

Notice how most of the data is clustered on the right side of the distribution and there's more spread in the left side of the data, meaning the left tail is longer. This creates a negative skew in the data. Review the attached diagram to learn more.

I need help with this

Answers

Base: 3 units

Height: 5 units

Area: 15 square units

         ([tex]A=b*h=3*5=15[/tex])

hope this helps :)

which ones do i press ?

Answers

Answer:

Step-by-step explanation:

b,e

I'll like a math genius to solve this.

8÷2 (2+2)​

Answers

Answer:

16

Step-by-step explanation:

8÷2(2+2)​

From PEMDAS, we do the equation in the parenthesis first.

8÷2(4)

Since this is division and multiplication we go left to right.

4(4)

16

Hey there!

[tex]\large\textsf{Do PEMDAS:}\\\\\\\large\textsf{Parentheses}\\\\\large\textsf{Exponents} \\\\\large\textsf{Multiplication}\\\\\large\textsf{Division}\\\\\large\textsf{Addition}\\\\\textsf{Subtraction}[/tex]

[tex]\large\textsf{8 }\mathsf{\div}\large\textsf{ 2 (2 + 2)}\\\\\large\textsf{2 + 2}\\\large\text{= \bf 4}}\\\\\large\textsf{8 }\mathsf{\div }\large\textsf{ 2(4)}\\\\\large\textsf{8 }\mathsf{\div}\large\textsf{ 2}\\\large\textsf{= \bf 4}\\\\\large\textsf{4(4)}\\\large\textsf{= \bf 16}\\\\\\\\\\\\\boxed{\boxed{\huge\textsf{Answer: \bf 16}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

BET YOU CANT SOLVE THIS ONE......✋

Answers

Umm, where's the question?????

i bet candice can tho

What is the value 3/4 to the power of 3

Answers

Answer:

2/8

Step-by-step explanation:

Answer:

27/64

Step-by-step explanation:

3/4 to the second power is 9/16. 3/4 to the third power is 27/64

2.02b + 4.30 = 2.00b + 6.30

Answers

Answer: b = 100

Step-by-step explanation:

simplifying

2.02b + 4.30 = 2.00b + 6.30

reorder the terms:

4.30 + 2.02b = 2.00b + 6.30

reorder the terms:

4.30 + 2.02b = 6.30 + 2.00b

solving

4.30 + 2.02b = 6.30 + 2.00b

solving for variable 'b'.

move all terms containing b to the left, all other terms to the right.

add '-2.00b' to each side of the equation.

4.30 + 2.02b + -2.00b = 6.30 + 2.00b + -2.00b

combine like terms: 2.02b + -2.00b = 0.02b

4.30 + 0.02b = 6.30 + 2.00b + -2.00b

combine like terms: 2.00b + -2.00b = 0.00

4.30 + 0.02b = 6.30 + 0.00

4.30 + 0.02b = 6.30

add '-4.30' to each side of the equation.

4.30 + -4.30 + 0.02b = 6.30 + -4.30

combine like terms: 4.30 + -4.30 = 0.00

0.00 + 0.02b = 6.30 + -4.30

0.02b = 6.30 + -4.30

combine like terms: 6.30 + -4.30 = 2

0.02b = 2

divide each side by '0.02'.

getting:  b = 100

MULTIPLE CHOICE
Select all that apply.

There are 3 red marbles, 2 green marbles, and 5 blue marbles in a bag. Which of the following are true?
The probability of randomly drawing a red marble and then a green marble is .
The probability of drawing a blue marble is the same as drawing either a red or a green marble.
The probability of randomly drawing either a red marble or a green marble is .
The probability of not drawing a blue marble is 50%.

Answers

Answer:

The probability of drawing a blue marble is the same as drawing either a red or a green marble. and the probability of not drawing a blue marble is 50%.

Step-by-step explanation:

Liam bought pizza and wings for $27.58. How much change should Liam receive if he gave the clerk three $10 bills?
Use coins and bills to help solve.
A. $1.52
B. $2.42
C. $2.52
D. $12.42

Answers

Answer:

B. $2.42

Step-by-step explanation:

If Liam gave the clerk three $10 bills, that means he gave the clerk $30. This is because 3 times 10 equals 30.

Find how much change he will receive by subtracting $27.58 from the $30 that Liam gave to the clerk:

30 - 27.58

= 2.42

So, Liam will receive $2.42 in change.

The correct answer is B. $2.42

Answer:

 2.42

Step-by-step explanation:

3 ten dollar bills = 3*10 = 30 dollars

Subtract the cost of pizza and wings

30 - 27.58

Line up the decimals

 30.00

- 27.58

----------------

  2.42

Plz help me simply algebra problem

Answers

Answer:

Step-by-step explanation:

[tex]a^{m}*a^{n}=a^{m+n}\\\\\frac{a^{m}}{a^{n}}=a^{m-n}[/tex]

[tex]\frac{-9p^{-5}(-7)r^{-7}(-4)p^{-4}}{4p^{-10}3p^{10}4p^{-2}}=\frac{(-9)*(-7)-(-4)*r^{-7}*p^{-5+(-4)}}{4*3*4*p^{-10+10+(-2)}}\\\\=\frac{(-3)*(-7)*(-1)r^{-7}p^{-9}}{1*1*4*p^{-2}}\\\\=\frac{(-21)r^{-7}p^{-9 - (-2)}}{4}\\\\=\frac{-21r^{-7}p^{-9+2}}{4}\\\\=\frac{(-21)r^{-7}p^{-7}}{4}[/tex]

Calcula el volumen de un depósito de desechos sólidos subterráneo formado por una parte prisma
cuadrangular que tiene de lado 8 m y una profundidad de 20 m. se sabe, además que la otra parte del
depósito es una pirámide con altura de 4 m.

Answers

Step-by-step explanation:

v8yviyc8yv9yv8yv8yviyv8yv8v6

If the exercise ball has been filled with Nitrogen which has a density of 0.2 grams per cubic inches. Find the mass in grams.
Options
11,581.2 grams

12,370.6 grams

13,891.5 grams

15,156.3 grams

Answers

Answer:

m = 11581.2 grams

Step-by-step explanation:

Given that,

The density of the ball, d = 0.2 g/in³

The radius of the ball, r = 24 inches

We need to find the mass of the ball in grams.

The density of an object is hiven by :

[tex]d=\dfrac{m}{V}\\\\d=\dfrac{m}{\dfrac{4}{3}\pi r^3}\\\\m=\dfrac{4}{3}\pi r^3\times d[/tex]

Put all the values,

[tex]m=\dfrac{4}{3}\pi \times 24^3\times 0.2\\\\m=11581.16\ g[/tex]

or

m = 11581.2 grams

Hence, the mass of the ball is 11581.2 grams.

Damon drove 120 miles on 2 hours and Ashley drove 135 miles in 2.3 hours. Ashley insist that she was traveling at a faster rate than damon. Is she correct, why?

Answers

Answer:

She is not correct

Step-by-step explanation:

distance = rate x speed

Damon:

120 = 2r

r = 60 miles per hour

Ashley:

135 = 2.3r

r = 58.7 miles per hour

4x-1divide by 2=x+7
what is x

Answers

X= 2.5
just move the terms collect the terms calculate it, divide both sides !!

2,10,18,26 find the 61st term

Answers

Answer:

482

Step-by-step explanation:

We can see that the numbers shown resemble an arithmetic sequence because they have a common difference. The formula for the nth term of an arithmetic sequence is:

[tex]a_{n} =a_{1} +(n-1)d[/tex]

Where [tex]a_{1}[/tex] is the first term, [tex]a_{n}[/tex] is the nth term, and [tex]d[/tex] is the common difference. To find the 61st term, all we need is the first term and the common difference. By looking at what given, we can say the first term is 2. Now, to find the common difference, we find the difference of a term from the term before it. In this case we can do [tex]10-2[/tex], which is [tex]8[/tex] , or the common difference. Since we have everything we need, it can be plugged into the equation:

[tex]a_{61} =2 + (61 - 1)*8\\a_{61} = 2 + 60*8\\a_{61} = 2 + 480\\a_{61} = 482[/tex]

So, the 61st term is 482.

Refer To The Equation 2x-6y=12
Please Help :)

Answers

I'm sorry I can't answer that but I know something so you can answer that. search in browser 'quickmath' all your problems, equations and more can be solved

Step-by-step explanation:

I hope it helps trust me

need answer quick !!! please

Answers

Answer:

f(-10) = 186

Step-by-step explanation:

Sub in -10 to the x - values:

f(x) = 2[tex]x^{2}[/tex] + [tex]x[/tex] - 4

f(-10) = 2(-10)^2 - 10 - 4

f(-10) = 200 - 10 - 4

f(-10) = 186

Think about the following relation: {(2,4),(-2,1),(2,2),(-3,1)}
What is the domain of the relation? {
}
What is the range of the relation? {
}

Answers

9514 1404 393

Answer:

  D: {-3, -2, 2}

  R: {1, 2, 4}

Step-by-step explanation:

The domain is the list of first-values of the ordered pairs:

  D: {-3, -2, 2}

The range is the list of second-values of the ordered pairs:

  R: {1, 2, 4}

Question: Simplify (3 1/7)^7

Answers

Answer:

3

Step-by-step explanation:

see image below:)

Answer:

[tex]\frac{22^7}{823543}[/tex] B. 3

Step-by-step explanation:

NO LINKS NO FILES! Jill says that the rules for multiplying and dividing integers are alike. Do you agree? Explain.

Answers

Answer:

Multiplying and dividing fractions are essentially the same process which you multiply the numbers straight across and no need for common denominators. Except in division of fractions, the second fraction is flipped so that the denominator is on the top and the numerator is on the bottom (reciprocal).

Answer:

I do not agree

Step-by-step explanation:

because in multiply negatives, the 2 negatives turn into a positive or multiplying positive and negative (and vice versa) becomes a negative still so the rules of multiplying and dividing are not alike integers. (For dividing it is the same!)

There are two packs of hyenas that live just outside of a small town in Harar, Ethiopia. Each night, the
packs fight to determine which pack can go through the city gate. The city provides unlimited food and
water to any hyenas that enter.
Is there competition taking place in the scenario? *
2 points
Yes
No

Answers

Answer:

yes

Step-by-step explanation:

the packs are fighting for a common goal against each other

so they are competing

I need help with this problem for my homework pls help

Answers

Answer:

x = 6.93

y = 13.86

Step-by-step explanation:

We can solve x by;

Tan(60) = 12/x

Tan(60) * x = 12

x = 12 / Tan(60)

x = 6.93

We can solve y by;

A² + B² = C²

12² + 6.93² = y²

144 + 48.02 = y²

192.02 = y²

[tex]\sqrt{192.02}[/tex] = y²

13.86 = y

Hope this helps!

Can someone check if this is right please? If not what is the correct way?

Answers

A, B, and C are the coefficients. They are not the terms as you have written now.

A quadratic equation is in the form Ax^2 + Bx + C. Therefore, A = 1, B = 8, and C = -6.

The axis of symmetry is  found using the equation -b/2a, as you've done. Therefore, the axis of symmetry is -8/2(1) = -4.

Hope this helps!! :)

Find the measures of the acute angles of the right triangle shown

Answers

9514 1404 393

Answer:

2x° = 64°(x-6)° = 26°

Step-by-step explanation:

The acute angles in a right triangle are complementary:

  2x° +(x -6)° = 90°

  3x = 96 . . . . . . . . . divide by °, add 6

  x = 32 . . . . . . . . . divide by 3

  (x-6)° = (32 -6)° = 26°

  2x° = 2(32)° = 64°

The acute angles have measures 26° and 64°.

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