Adults randomly selected for a poll were asked if they"favor or oppose using federal tax dollars to fund medical research using stem cells obtained from humanembryos." Of the subjectssurveyed, 471 were infavor, 432 wereopposed, and 149 were unsure. A politician claims that peopledon't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin flip. Use a 0.05 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about thepolitician's claim?

Find the null and alternative hypotheses.

A.

H0: p=0.5

H1: p0.5

B.

H0: p=0.5

H1: p<0.5

C.

H0: p=0.5

H1: p>0.5

D.

H0: p0.5

H1: p=0.5

Find the test statistic.

z=

(Round to three decimal places asneeded.)

Find the criticalvalue(s).

z=

(Use a comma to separate answers as needed. Round to two decimal places asneeded.)

State the conclusion.

Fail to reject

Reject

H0. There

is

is not

sufficient evidence to reject the claim that the proportion of subjects who responded in favor is equal to 0.5. Thepolitician's claim

appears

does not appear

to have merit.