Mathematics College

We are told that the data is representative of the two populations (U.S. males aged 20-29 years and U.S. males aged 75+ years), and we will assume that researchers collected random samples. The samples are very large; therefore, the conditions are met for use of the T-test. Using StatCrunch, we find a T-score of 5.3 and a P-value of "< 0.0001." What can we conclude? Group of answer choices The data prove that, in the U.S., young men weigh about 4.9 kgs more on average than old men. The data suggest that young men weigh more on average than old men in the U.S., but that the difference in mean weights for the two groups is not statistically significant. The data provide strong evidence that young men weigh more on average than old men in the U.S. no conclusion is possible because we did not specify a significance level

Answers

Answer 1

Answer:

The data provide strong evidence that young men weigh more on average than old men in the U.S

Step-by-step explanation:

Given :

The null hypothesis ; H0 : μ1 = μ2

The alternative hypothesis ; H1 : μ1 > μ2

T score = 5.3 ; Pvalue = < 0.0001

The decision region :

If Pvalue < α ; We reject the Null

If Pvalue > α ; We fail to reject the Null

When the α - level isn't stated, we usually assume a α - level of 5%

However, even at lower alpha level of 1% = 0.01 ;

The Pvalue < α

Hence, we can conclude that there is significant evidence that there is difference in the mean weight of young men and old men in the U.S

Related Questions

Solve the system using subtraction
X+4y =26
4x+5y=27
Please help explain how to do this with finding correct answer

Answers

The answer is x=9 I’ve just did this problem once you take 4x+5 you’ll get 8

A patio of a house is 16 feet by 12 feet. The area of the patio is square feet.

Answers

Answer:

192

Step-by-step explanation:

16 * 12 = 192 square feet

brainliest please??

Are = length times width
16x12= 192ft

2. Which number is irrational?
A. 319
B. 93
C. 419
D. 94

Answers

C: 419.

Explanation:
It has an infinite number if decimals when you try to find the square root

The area of a triangle is 20 square feet.
What are the height and base of the
triangle?

Pls help need answers quick

Answers

Since the equation is A= 1/2 times base times height, I did the base as 8 and the height as 5.

find the least common multiple of 10,15,25 please no links or photo

Answers

Answer:

150

Step-by-step explanation:

The LCM of 10,15,25 10 , 15 , 25 is 2⋅3⋅5⋅5=150 2 ⋅ 3 ⋅ 5 ⋅ 5 = 150 .

8.2 % of what number is $2.13?

Answers

Answer:

Step-by-step explanation:

174

Answer:

i believe its 26

Step-by-step explanation:

please mark brainliest if right

1. Find the surface area of the triangular pyramid.
12 yd
17.3 yd
20 yd
What is the surface area of the triangular pyramid

Answers

look on this website they have all the answer getmathhelp.net

Charlie buys a new Bey Blade for $11.38. He gives the cashier $15.00. How much change will he get back? Select TWO ways he will get change.

Answers

Yeeeeeeeeeeeeeeeeeeree said that he was a

Answer:

2 & 4

Step-by-step explanation: :)

25 - [2x(18 divided by 3) + 2

Answers

Answer:

the answer is 11

Step-by-step explanation:

if you take 18 divided by 3 and then 2 times that plus 2 and minus 25 it is 11

Does the set of points represent a function? Explain.

Answers

don’t click the file they hack. but try using photo math it helps and solves/shows you how to do ur work.

Write an explicit formula for an, the n^th term of the sequence 22, 20, 18, ....

Answers

Answer:

[tex]a_n=a+(n-1)d[/tex]

Step-by-step explanation:

The given sequence is 22, 20, 18, ...

We need to find the explicit formula for an.

First term is 22

Second term = 20

Third term = 18

We can write the formula as :

[tex]a_n=a+(n-1)d[/tex]

Where

a is 22

d is common difference = 20-22 = -2

Forth term will be :

[tex]a_4=22+(4-1)(-2)\\\\=22-6\\\\=16[/tex]

Hence, the formula is [tex]a_n=a+(n-1)d[/tex].

The value of X (click photo)

Answers

Answer:

20°

Step-by-step explanation:

Answer:

x=40

Step-by-step explanation:

The measure of the angle <RTS is half the difference of the measures of the intercepted arcs (mRS and mQP).

<RTS=(1/2)(mQP-mRS)

(x/2)=(1/2)((x+70)-(x+30))

x=x+70-x-30

x=40

what is 1/3 +4 x 3

If you answer correctly i will give 100 points and Brainiest :)

Answers

12 1/3 or 12.33.

EXPLANATION:
because of order of operations or PEMDAS, multiplication comes first.

4 x 3 = 12

so now we have 1/3 + 12.

So 12 1/3.

Which in decimal form is 12.33

helpp i beg u its due in one hour!!! plz

Answers

Answer:

113.1 cm²

Step-by-step explanation:

we are given the diameter of the circle (length is 12 cm), and the formula for the area of the circle, which is πr², where r is the radius

so first, we need to find the radius

the length of the radius is half the length of the diameter

so that means that r=d/2

r=d/2

r=12/2

r=6

therefore the length of the radius is 6

now square 6, which is the same as multiplying it by itself

6²=36

now, multiply the radius squared by π, which is often substituted for as 3.14 or 22/7

so if we were to do 22/7 for instance,

36*22/7≈113.14

round that to 113.1

there's your answer :)

Hope this helps!

When 1 is added to one-half of number x, the result is 3. What is the value of x?
A) 1
B) 3
C) 4
D) 6
E) 8
And why?

Answers

Answer:

C) 4

Step-by-step explanation:

1 + x/2 = 3

x/2 = 2

x = 4

The value of x is 4.

Start with 4. Half of 4 is 2. Add 1. You get 3. 4 makes the problem work, so 4 is the answer.

Answer: C) 4

A jar has 6 red marbles and 4 blue marbles. If 2 marbles are chosen, one at a time without replacement, what is the probability that both marbles will be red

Answers

1/3 Probability both are red

red picked first:

6/10

red picked second:

5/9 (9 as first red marble not replaced so 5 red marbles remaining and 4 blue marbles still)

6/10 * 5/10 = 1/3

Hope that helps!!

Malia owns 1 out of 3 gas stations in Jasper. In Webster, Abby owns 6/25 of the gas stations. Who owns a greater fraction of gas stations in her area?

Malia or Abby?

Answers

Answer:

I think it would be Malia but if I'm wrong please let me know.

Bob wants to buy a car. He puts $8,000 in a savings account that has a
simple interest rate of 4%. If he leaves his money in the account for 3
years, how will be in his account in TOTAL after 3 years?"

A-$960

B-8,960

C-7,040

D-$320

Answers

9514 1404 393

Answer:

B. $8,960

Step-by-step explanation:

Use your number sense.

If the account earns interest, the balance will increase from the initial deposit of $8000. The only sensible answer choice is B, $8960.

If you want to actually figure it out, the balance is given by ...

A = P(1 +rt)

A = 8000(1 +0.04·3) = 8000(1.12) = 8960 . . . . matches choice B

Fred earns dollars. Chad earns 45% more than Fred which expression represents the amount of money in dollars that chad earns

Answers

Answer:

$0.45x

Step-by-step explanation:

Fred earns dollars. Let Fred earns $x.

Chad earns 45% more than Fred.

We need to find the expression for Chad.

Chad amount = 45% of x

[tex]=\dfrac{45}{100}x\\\\=0.45x[/tex]

So, Chad earns $0.45x.

Please help! I will give brain list also if you mind(you don’t have to) but may you explain?

Also I report people who add links :)

Answers

Answer:

[tex]\frac{2}{8} <\frac{3}{4}[/tex]

Step-by-step explanation:

[tex]\frac{3}{4} =\frac{6}{8} \\[/tex]

therefore 3/4 will be greater than 2/8

HELPP PLEASE!!!!
Determine if the sequence below is arithmetic or geometric and determine the
common difference / ratio in simplest form.
5,8,11

Answers

Answer:

Arithmetic, add 3 each time

you would add 3 every time, arithmetic

8. What is the value of x? Pls show work thank you

Answers

Answer:

Step-by-step explanation:

[tex]7x - 15 + x= 180 \\ 8x = 180 + 15 \\ 8x = 195\\ x = 24.375 \\ x + 28 + 4x - 3 + 24 = 180 \\ 5x = 180 - 28 + 3 - 24 \\ 5x = 131 \\ x = 26.2[/tex]

i think so

hope it helps

have a nice day

What is the volume of the rectangular solid below?
plzzzz help

Answers

16 cubic inchessssss

What is the value of x?

Answers

Answer: 15

Step-by-step explanation:

x-6/(x-6)+3 = x/x+5

The x in the equation is 15

look at pic 10 pts will mark brainilest

Answers

Answer:

B. 160 minutes

Step-by-step explanation:

200/5=40

40*4=160

Answer:

160

Step-by-step explanation:

You would have to divided the recent pages (200) with the previous (5)

and you would get 40 and then you would multiply the divided amount page with the 4 minutes and you would get 160

How it was worked out:

200 / 5 = 40, 40 x 4 = 160

Devaughn is 7 years younger than Sydney. The sum of their ages is 79 . What is Sydney's age?

Answers

Answer:

Sydney is 72 years old

Step-by-step explanation:

My friends name is Sydney too lol

Triangle 2 is a scale drawing of Triangle 1.

Based on the information in the diagram, what is the length of side b?

Answers

Answer:

36 would be the answer

Step-by-step explanation:

The length of side b in triangle 2 is 36.

What are similar triangles?

Two triangles are similar if they have the same corresponding angles and their corresponding sides are in equal ratios.

Given that, there are two triangles, triangle 2 is a scale drawing of triangle 1.

Therefore, Δ 1~Δ 2,

According to the definition of similar triangles,

6/27 = 10/45 = 8/b

Therefore,

8/b = 6/27

8/b = 2/9

b = 36

Hence, the length of side b in triangle 2 is 36.

Learn more about similar triangles, click;

https://brainly.com/question/14926756

#SPJ3

Alvin is 7 years younger than Elgas. The sum of their ages is 63. What is Elgas age?

Answers

Answer:

Elgas is 35.

Step-by-step explanation:

Let's set up an equation.

Alvin is 7 years younger than Elgas.

A = E - 7

The sum of their ages is 63.

A + E = 63

Let's use substitution.

Plug in the first equation of A into the second equation.

A + E = 63

(E - 7) + E = 63

Combine like terms.

2E - 7 = 63

Add 7 to both sides.

2E = 70

Divide both sides by 2.

E = 35

Elgas is 35.

Hope this helps!

How to solve X2 + 2x -63

Answers

Answer:

Answer is -69

Step-by-step explanation:

-69 bc 69 is always correct

Answer:

( x − 7) ( x + 9 )

Step-by-step explanation:

Factor x 2 + 2 x − 63 using the AC method.

Find the area of the following figure with the given dimension.

Answers

Answer: 54 cm^2

Step-by-step explanation:

Area of a triangle= 1/2 * b * h

A= 1/2 * 9 * 12

A= (9*12)/2

A= 108/2

A- 54 cm^2

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