Answer:
There is enough evidence to support the claim that the population mean is greater than 100
Step-by-step explanation:
<u>Step 1</u>: We state the hypothesis and identify the claim
and 
(claim)
<u>Step 2</u>: Calculate the test value.
<u>Step 3</u>: Find the P-value. The p-value obtained from a calculator is using d.f=39 and test-value 1.126 is 0.134
<u>Step 4</u>: We fail to reject the null hypothesis since P-value is greater that the alpha level. (0.134>0.05).
<u>Step 5</u>: There is enough evidence to support the claim that the population mean is greater than 100.
<u>Alternatively</u>: We could also calculate the critical value to obtain +1.685 for 
and d.f=39 and compare to the test-value:
The critical value (1.685>1.126) falls in the non-rejection region. See attachment.
NB: The t- distribution must be used because the population standard deviation is not known.
Answer:it will the take 5 mitutes
Step-by-step explanation:
Let x represent the distance at which both companies charge the same amount.
Let y represent the cost of x miles when using company A.
Let z represent the cost of x miles when using company B.
Company A charges a flat fee of $4 plus $2 per mile. It means that
y = 4 + 2x
Company b does not charge a flat fee but charges $2.80 per mile driven. This means that
z = 2.8x
To determine the distance before both plans will be be the same, we would equate both equations. It becomes.
4 + 2x = 2.8x
2.8x - 2x = 4
0.8x = 4
x = 4/0.8 = 5
Answer:
Your answer is 2.042
Step-by-step explanation:
If you want it simplified you can change it to
2.0/2.04.
1.5 is greater than 0.75, so her brother ate more
Answer:
(goh) (4) = 7
Step-by-step explanation:
(goh) (x) = g(h(x))
Plug in
g(h(x)) = 5(√x) - 3
if x = 4 then
g(h(4)) = 5(√4) - 3
g(h(4)) = 5(2) - 3
g(h(4)) = 10 - 3
g(h(4)) = 7
