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