A clinical trial tested the effectiveness of bupropion hydrochloride in helping people who want to stop smoking. Results of abstinence from smoking 52 weeks after the treatment are summarized in the table below. Use a 0.05 significance level to test the claim that whether a subject smokes is independent of whether the subject was treated with bupropion hydrochloride or a placebo. Bupropion Hydrochloride Placebo Smoking 315 167 Not Smoking 101 26a. StateUpper H 0. A.Whether a subject smokes is independent of whether the subject was treated with bupropion hydrochloride or a placebo B.Receiving bupropion hydrochloride is independent of receiving a placebo C.Smoking is independent of not smoking D.Quitting smoking is hard b. Calculate the P-value. Which of these options is closest to the P-value? A.0.0023 B.0.0047 C.0.0014 D.0.0039 c. State the technical conclusion. A.Reject Upper H 0 B.Do not reject Upper H 0 d. State the final conclusion. A.The sample data support the claim. B.There is not sufficient sample evidence to support the claim. C.There is not sufficient evidence to warrant rejection of the claim. D.There is sufficient evidence to warrant rejection of the claim. e. Based on the results, does it appear that treatment with bupropion hydrochloride is any different than treatment with a placebo?

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A clinical trial tested the effectiveness of bupropion hydrochloride in helping people who want to stop smoking. Results of abstinence from smoking 52 weeks after the treatment are summarized in the table below. Use a 0.05 significance level to test the claim that whether a subject smokes is independent of whether the subject was treated with bupropion hydrochloride or a placebo.

Bupropion Hydrochloride Placebo

Smoking

315

167

Not Smoking 101 26

a. State

Upper H 0

Whether a subject smokes is independent of whether the subject was treated with bupropion hydrochloride or a placebo

Receiving bupropion hydrochloride is independent of receiving a placebo

Smoking is independent of not smoking

Quitting smoking is hard

b. Calculate the P-value. Which of these options is closest to the P-value?

0.0023

0.0047

0.0014

0.0039

c. State the technical conclusion.

Reject Upper H 0

Do not reject Upper H 0

d. State the final conclusion.

The sample data support the claim.

There is not sufficient sample evidence to support the claim.

There is not sufficient evidence to warrant rejection of the claim.

There is sufficient evidence to warrant rejection of the claim.

e. Based on the results, does it appear that treatment with bupropion hydrochloride is any different than treatment with a placebo?

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