Question

In 1965, about 44% of the U.S. adult population had never smoked cigarettes. A national health survey of 1472 U.S. adults (presumably selected randomly) during 2010 revealed that 677 had never smoked cigarettes.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. You suspect that the proportion has grown since 1965. Which of the following are the appropriate hypotheses?A. H0: p = 0.44, Ha: p > 0.44B. H0: p = 0.51, Ha: p In 1965, about 44% of the U.S. adult population ha 0.51C. H0: p = 0.44, Ha: p In 1965, about 44% of the U.S. adult population ha 0.44D. H0: In 1965, about 44% of the U.S. adult population ha = 0.44, Ha: In 1965, about 44% of the U.S. adult population haIn 1965, about 44% of the U.S. adult population ha 0.44

Answer 1

H0: p = 0.44, Ha: p ≠ 0.44

Explanation:

The following information is mentioned

44% of the US adult population would never smoked cigarettes so that means the proportion would be

= 44 ÷ 100

= 0.44

Now we have to check the test whether this change represent increase or decrease

So the hypothesis is

`H_o: P=0.44`

`H_1: P \\eq 0.44`

The two tailed means

`P < 0.44 \, \, or \, \, P> 0.44 )`