A random sample of 663 teens who said they did not typically eat fast food reported an average daily calorie intake of 2258, with standard deviation 1519. A random sample of 413 teens who said they did typically eat fast food reported an average daily calorie intake of 2637, with standard deviation 1138. The two populations are moderately positively skewed. Based on the above description, which of the following conditions are met for conducting a hypothesis test for the equality of two means?

a. Both samples are random
b. Samples are independent of one another
c. Both samples are normal enough given the sample size
d. Two population means need to be the same

Answers

Answer 1

Answer:

Option B

Step-by-step explanation:

The sample populations are independent of each other and hence for comparing of mean of two population it is very essential that the two populations independent of each other.

Now here one population set consist of only people who eat fast food and the other set of population consists of people who do not eat fast food.


Related Questions

Someone help me, please:)

Answers

Answer:

12

Step-by-step explanation:

This is the correct answer:)

Find the simplified form of the expression. Give your answer in scientific notation.
(4 * 10^10)(9x10^-5)

Answers

Step-by-step explanation:

Given

(4*10^10)(9*10^-5)

= 36 * 10^10 - 5

= 36 * 10^5

= 3.6 * 10^6

Hope it will help :)

22×(4.5×4.5×4.5+9)=

what is the answer? ​

Answers

2202.75 is the answer

Answer:

2202.75

Step-by-step explanation:

calculator

x/(x-2)*(x+2)*(x-1) into partial fraction
​no matter how many times i redo it my answers just not matching with that of my books. can we have different answers?

Answers

Answer:

((-1 + x) (2 + x) X)/(-2 + x)

Step-by-step explanation:

1 (x^(2)x)/(x-2)+(xx)/(x-2)-(2x)/(x-2)

2 (x(x+1)-2)x)/(x-2)

3 (x(xx+x)-2x)/(x-2)

4(x^(2)x+xx-2x)/(x-2)

5 (-2 + x + x^2) X)/(-2 + x)

Root

X = 0 , X-2=0

Roots

X=-2

X=1

Translate this sentence into an equation.

64 is the product of Goran’s height and 4

Use the variable g to represent Goran’s Height

Answers

Answer:

g×4=64

product means multiply

so that would mean Gorans height times 4 and that would all equal 64

hope this helped

The Valley Middle School library just added 250 books to the shelves. Of those books, 40% are fiction. How many of the new books are fiction?

Answers

Answer:

100

20 = 50

50 x2

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

250 books × 40%

= 100

other way to solve it is

250 × 0.40

= 100 fiction books

At lunch time, Benjamin often borrows money from his friends to buy snacks in the school cafeteria. Benjamin borrowed $0.75 from his friend Clyde five days last week to buy chips. Represent the amount Benjamin borrowed as the product of two rational numbers; then, determine how much Benjamin owed his friend last week.

Answers

Answer:

3.75

Step-by-step explanation:

find the value of x and round

Answers

Answer:

X=80.4

Step-by-step explanation:

Lol

Step-by-step explanation:

x= 78 approximately

hope this is correct

The regular price of an item at a store is $2,000. If the sale price is $1,120, what percent is the discount?

Answers

Answer:

$3,120

Step-by-step explanation:

$2,000

+$1,120

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

    $3,120

Hence, the percent is the discount is $ [tex]3120[/tex].

What is the percentage?

A percentage is a number or ratio expressed as a fraction of [tex]100[/tex]. It is often denoted using the percent sign, "%".

Here given that,

The regular price of an item at a store is $[tex]2,000[/tex]. If the sale price is $[tex]1,120[/tex].

So,

[tex]2,000+1120=3120[/tex] $

Hence, the percent is the discount is $ [tex]3120[/tex].

To know more about the percentage

https://brainly.com/question/13244100

#SPJ2

650^4×650^5= 650 to the what power​

Answers

Answer:

650^9

power gets added when base is same

650^9!! hope this helps! feel free to clarify

y
10
8
6
4
2
X
-10
-8
-6
-4
-2.
NS
4
ON
8
10
-2
-4.
-6
-8
-10

Answers

What are we supposed to do

A line segment has an endpoint at (-7, 11) and (-6, 4), what is the length of
the segment?

Answers

Answer:

d = 5√2 units

Step-by-step explanation:

Let's use the distance formula: d = √[(x₂ - x₁)² + (y₂ - y₁)²]

Plug in the values with your endpoints.

d = √[(-6 - (-7))² + (4 - 11)²]

Solve within the parentheses.

d = √[(1)² + (-7)²]

Solve the exponents.

d = √[1 + 49]

Solve within the brackets.

d = √50

Simplify the square root.

25 • 2 = 50

√25 • √2 = √50

5 • √2 = √50

d = 5√2 units

Hope this helps!

A Ferris wheel has a radius of 48 feet. What is the distance a passenger will travel one time around the Ferris wheel?
96.0 feet
150.8 feet
301.6 feet
603.2 feet
HURRY PLEASEE
✿✿✿✿✿✿

Answers

96 ft
Radius is only half so just times 2 and get 96
301.6 (C= 2 • r • 3.14)

What is the solution to x+4y=-1 and 2x + 5y=10??????

Answers

And they were roommates
x=12
y=-4
Wanna talk??
Sorry I had the answer on two pages,; can’t post more than one photo

Evaluate the expression when x-=12.5 and y=6 12x-3y^2

Answers

Answer:

Step-by-step explanation:

Expresión x--12.5*y-612*x-3*y-2 = 9.5*y-611.0*x-2.0

Directions: Find the missing term in each pair of equivalent ratios.
1. 3:4 = 21:n
2. 1:5 = n : 40
3. 2 : n = 8 : 12
4. n = 2
42 7

5. 4 = 20
9 n

Answers

Step-by-step explanation:

1 multiplied by 7

3;4=21:28

2) multiplied by 8

1:5= 8:40

3)divided by 4

2:3= 8:12

4) multiplied by 6

12/42= 2/7

5) multiplied by 5

4/9= 20/45

Write an exponential function in the form y=ab^xy=ab
x
that goes through points (0, 13)(0,13) and (3, 832)(3,832).

Answers

Answer: Down Below

Step-by-step explanation: y=ab%5Ex

that goes through points (0, 10) and (2, 490)

y=ab%5Ex.......plug in (0, 10)

10=ab%5E0

10=a%2A1

a=10

so far

y=10b%5Ex......plug in (2, 490)

490=10b%5E2

b%5E2=490%2F10

b%5E2=49

b=sqrt%2849%29

b=7

your function is:+y=10%2A7%5Ex

A function assigns the values. The exponential function that goes through (0, 13) and (3, 832) is y=13(4)ˣ.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

Given the exponential eqation is y=abˣ, substitute any one of the point in equation we will get,

13 = ab⁰

13 = a ₓ 1

a = 13

Therefore, the function can be written as y=13bˣ.

Substitute other point in the equation,

832 = 13 (b³)

b³ = 832/13

b³ = 64

b = 4

Hence, the exponential function that goes through (0, 13) and (3, 832) is y=13(4)ˣ.

Learn more about Function:

https://brainly.com/question/5245372

#SPJ2

PLEASE HELP!
4x + 2y = 6
-2x + 2y = 18
There combined answer please!
SHOW YA WORK

Answers

your answer, in your set notation, is
{-2, 7}

Find the value of x. I WILL GIVE 100 POINTS ANSWER QUICK!

Answers

Answer:0.714 not sure exactly  if i need to simplify, mullitiply,  or divide.

Step-by-step explanation:

the answer is 0.714 ! hope this helped clarify

Michael and Imani go out to eat for lunch.

Part A: If their food and beverages cost $25.30 and there is an 8% meals tax, how much is the bill?

Part B: If Michael and Imani add an 18% tip to the bill, what does their lunch cost in total?

Answers

Answer:

Step-by-step explanation:

part=A

So, we must find out what the total bill cost is such that we begin by multiplying the price with the tax such that  $25.30(0.08) = $2.024.

Then we add the tax to the price such that

$25.30+2.024 = $27.32

In the case of adding an 18% tip,

So continuing on from the above post, $27.32 is the total after taxes. Then we add an 18% tip which is  

$27.32 (.18) = $4.92..........Then, we add it to the $27.32 to get  

$27.32 + $4.92 = $32.24 in total!

Plssssssssss help because i need to go to basketball practice

Answers

Answer:

The answer is a= 5

Step-by-step explanation:

hope this helps

Answer: a=5

Step-by-step explanation: 3(5)=15

go back to practice :)

Evaluate the function when x = 12.

{(-9, 1), (3, 4), (6, 2), (12, -6)}

A. -6
B.1
C.4
D.2

Answers

Answer:

It is the second one B

Step-by-step explanation:

if the measure of angle a is 109, what is the measure of angle b

Answers

Answer:

71

Step-by-step explanation:

Those are supplementary angles meaning they add up to 180 degrees

180 - 109 = 71

That would make b 71 degrees

Answer:

71 degrees !!

Step-by-step explanation:

Since the angles A and B both are next to each other, they form a linear pair. Since they are a linear pair, they both add up to 180 degrees (same as a straight angle!) So, if A is 109, you would simply subtract that from 180, and you'd get 71 !!

180-109= 71 !!

I hope this helps... have a great day !

write 7^3 × √ 7 as a single power of 7​

Answers

Step-by-step explanation:

7^3 × 7^(1÷2)

= 7^(3+ 0.5)

=7^3.5 ans

Write an equation that shows the relationship 40% of 140 is x

Answers

Answer:

x=140times0.4

Step-by-step explanation:

then subtract your anser from 140

nmqlwmqlqmwmwmmwmqmmqm​

Answers

Answer:

nmqlwmqlqmwmwmmwmqmmqmnmqlwmqlqmwmwmmwmqmmqmnmqlwmqlqmwmwmmwmqmmqm

Would the mass of a mouse more likely be 150 gram or 150 kilograms

Answers

Answer:

150g most likely

Step-by-step explanation:

kg are a thousand times more than a gram

Determine if the following function is even, odd or neither.
f(x) = 4x2 – 8x + 5

Answers

9514 1404 393

Answer:

  neither

Step-by-step explanation:

A polynomial consisting of even-degree terms only is even.

A polynomial consisting of odd-degree terms only is odd.

The given f(x) polynomial has both even- and odd-degree terms, so is neither.

SOEMOENN HELP ME PLEASE WITH A MATH PROBLME If x is 6, what is:
7- X

Answers

Answer:

1

Step-by-step explanation:

7-6=1

Answer:

1

Step-by-step explanation:

7-x

x=6

7-6=1

A quality-assurance inspector periodically exam-ines the output of a machine to determine whether it is properly adjusted. When set properly, the machine pro-duces nails having a mean length of 2.000 inches, with a standard deviation of 0.070 inches. For a sample of 35 nails, the mean length is 2.025 inches. Using the 0.01 level of significance, examine the null hypothesis that the machine is adjusted properly. Determine and interpret the p-value for the test.

Answers

Answer:

Step-by-step explanation:

From the given information;

The null hypothesis & alternative hypothesis:

[tex]\mathbf{H_o:\mu = 2} \\ \\ \mathbf{H_1 : \mu \ne 2}[/tex]

The test statistics can be computed as:

[tex]Z = \dfrac{\overline x - \mu}{\dfrac{\sigma}{\sqrt{n}}}[/tex]

[tex]Z = \dfrac{2.025- 2}{\dfrac{0.07}{\sqrt{35}}}[/tex]

[tex]Z = \dfrac{0.025}{\dfrac{0.07}{\sqrt{35}}}[/tex]

[tex]Z =2.11[/tex]

The p-value = 2(Z > 2.11)  since this is a two-tailed test

The p-value = 2( 1 - Z < 2.11)

The p-value = 2 (1 -0.9826)

The p-value = 2 (0.0174)

The p-value = 0.0348

Decision Rule: To reject the [tex]\mathbf{H_o}[/tex]  if the p-value is less than [tex]\mathbf{H_o}[/tex]

Conclusion: We fail to reject [tex]\mathbf{H_o}[/tex] and conclude that the population mean = 2, thus the machine is properly adjusted.

Other Questions
Choose the umbrella topic(s).Therapy dogsMan's positive impact on the environmentAmerica's only rainforestWage earningsSocial mediaChoose the narrowed topics.Violence in video gamesCheatingCircus animalsEffects of eating processed food 1.) what is the short-run effect on the exchange rate of an increase in domestic real gnp, given expectations about future exchange rate? The risk-free rate of return is 1.7 percent, the inflation rate is 2.1 percent, and the market risk premium is 6.9 percent. What is the expected rate of return on a stock with a beta of 1.56?a. 11.83b. 10.15c. 13.45d. 12.46 percente. 12.93 let sk be the set of all n n matrices for which the sum of the diagonal entries is equal to a fixed number k. for which values of k is sk a subspace? ANSWER NOW ILL MAKE U BRAINLIEST has bottom changed? is it likely the audiences attitude toward him has changed? if so, why? tom's major predicament is one of the themes of the play. this theme could best be described as The most abundant molecules in the cell membranes of most species are a) nucleotides. b) phospholipids. c) fatty acids. d) proteins. e) steroids. f) sugars. Which function will approach positive infinity the fastest?A. F(x) = 100(1. 5)B. F(x) = 200(1. 45)*C. F(x) = 100x5 + 200x3 + 100D. F(x) = 200x3 + 100x2 + 100 Predict the products of the following reactions. (a) sec-butyl isopropyl ether + concd. HBr, heat (c) di-n-butyl ether + hot concd. NaOH (e) ethoxybenzene + concd. HI, heat (g) trans-2,3-epoxyoctane + H+, H2O (b) 2-ethoxy-2-methylpentane + concd. HBr, heat (d) di-n-butyl ether + Na metal (f) 1,2-epoxyhexane + H+, CH3OH (h) propylene oxide + methylamine (CH3NH2) (j) < (1) PhLi phenyllithium (2) H30+ (i) potassium tert-butoxide + n-butyl bromide mCPBA, CH2Cl2 HBr (tm) Yo Ch,0".CH,0H CH20%, CH2OH CH,OH, H+ A 0. 05-kg car starts from rest at a height of 0. 95 m. Assuming no friction, what is the kinetic energy of the car when it reaches the bottom of the hill? (Assume g = 9. 81 m/s2. ). Compute the differential of surface area for the surface S described by the given parametrization. r(u, v)-(eu cos(v), eu sin(v), uv), D-{(u, v) | 0 US 4, 0 2T) v ds- dA how many moles of nitrate ions are contained by 95.0ml of 0.420 m aluminum nitrate Inflation: Select the correct answers to fill in the blanks. Enter the letter for each. There are more answers than questions; therefore, some of the items will remain unused. (5 Pts)Inflation occurs when the value of the currency has _____ over time.The market interest rate is a combination of the real interest rate and the _____If future dollars are expressed in terms of today's dollars, the inflation-adjusted present worth is found by using the value _____ in the present worth factors.In order to obtain the buying (purchasing) power of future dollars in terms of constant value dollars, the first step is to use the market interest rate to obtain the future value (FV) and then divide by _____To determine the actual amount of money accumulated at a future time, use the _____a. i+fb. Increasedc. Market interest rated. (1+1)"e. i+f+iff. Inflation Rateg. Decreased if a mortgage loan originator licensee is subject to a support order issued by the department of social and health services and is found to be out of compliance with that order, the director will: based on the lewis structure given, the formal charge on the central sulfur atom is when gordon allport (1954) described stereotyping as "the law of least effort," he was suggesting that stereotypes arise __________. evaluate the line integral along the path c given by x = 2t, y = 4t, where 0 t 1. c (y x) dx 10x2y2 dy how many valence electrons are there in h3n -ch2-cooh You are building a rectangular brick patio surrounded by crushed stone in a rectangular courtyard. The crushed stone border has a uniform width x (in feet). You have enough money in your budget to purchase patio bricks to cover 140 square feet.Solve the equation 140 = (20 - 2x)(16 - 2x) to find the width of the border.