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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
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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
.
 
 
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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