In 1965, about 44% of the Australian adult population had never smoked cigarettes. A national health survey of 1205 Australian adults (presumably selected randomly) during 2006 revealed that 615 had never smoked cigarettes.
Suppose you wished to test whether there has been a change since 1965 in the proportion of Australian adults that have never smoked cigarettes. Which of the following are the appropriate hypotheses?

Question

In 1965, about 44% of the Australian adult population had never smoked cigarettes. A national health survey of 1205 Australian adults (presumably selected randomly) during 2006 revealed that 615 had never smoked cigarettes.

Suppose you wished to test whether there has been a change since 1965 in the proportion of Australian adults that have never smoked cigarettes. Which of the following are the appropriate hypotheses?

Answer

H0:  p  = 0.44, Ha:  p  ≠ 0.44

Answer

H0:  p  = 0.44, Ha:  p  < 0.44

Answer

H0:  p  = 0.51, Ha:  p  ≠ 0.51

Answer

H0:  p  = 0.44, Ha:  p  > 0.44

Crowdly

In 1965, about 44% of the Australian adult population had never smoked cigarette...

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