Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

The Energy Information Administration reported that51.7%of homes in the United States were heated by natural gas. A random sample of212homes found that115were heated by natural

The Energy Information Administration reported that51.7%of homes in the United States were heated by natural gas. A random sample of212homes found that115were heated by natural gas. Does the evidence support the claim, or has the percentage changed? Use = 0.01and theP-value method.

(a) State the hypotheses and identify the claim with the correct hypothesis.

H0 : p ____ 0.517

H1 : p ____ 0.517

Which above is the claim?

This hypothesis test is a_____- tailed test.

(b) Compute the test value. Round the sample proportion to three decimal places andzscore value to two decimal places.

(c) Find theP-value. Round the answer to four decimal places.

(d) Make the decision.

_____the null hypothesis.

(e) Summarize the results.

There_______enough evidence to reject the claim that51.7%of homes in the United States were heated by natural gas.

(f) Would the percentage of homes heated by natural gas change, if the sample were taken in a different geographic area?

______, the percentage of homes heated by natural gas________change, if the sample were taken in a different geographic area.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Brief Calculus & Its Applications

Authors: Larry J Goldstein, David C Lay, David I Schneider, Nakhle I Asmar

13th Edition

0321888510, 9780321888518

More Books

Students also viewed these Mathematics questions

Question

Describe the marketing research process. LPO98

Answered: 1 week ago

Question

L A -r- P[N]

Answered: 1 week ago