leloobey
leloobey
09.10.2019 • 
History

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.

Solved
Show answers

Ask an AI advisor a question