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In 1965, about 44% of the U.S. adult population had never smoked cigarettes. A national health survey of 1205 U.S. adults (presumably selected randomly) during 2006 revealed that 615 had never smoked cigarettes.
Reference: Ref 18-5

Suppose you wished to test whether there has been a change since 1965 in the proportion of U.S. adults that have never smoked cigarettes. Which of the following are the appropriate hypotheses?
A. H0: p = 0.44, Ha: p > 0.44
B. H0: p = 0.51, Ha: p 0.51
C. H0: p = 0.44, Ha: p 0.44
D. H0: = 0.44, Ha: 0.44

The P-value of the test of hypotheses is
A. greater than 0.10.
B. between 0.05 and 0.10.
C. between .01 and 0.05.
D. below 0.01.

Respuesta :

Thank you for posting your question here. Below are I think is the answer, I hope it helps. 

For number 1. The answer is letter C which is "H0: p = 0.44, Ha: p 0.44"

For number 2. The answer is letter A which is greater than 0.10.

Answer: the correct sequence is 1.- A. H0: p = 0.44, Ha: p > 0.44   2.- A. greater than 0.10.

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