A presidential candidate's aide estimates that, among all college students, theproportionp

who intend to vote in the upcoming election is at least70

%

. If145

out of a random sample of235

college students expressed an intent to vote, can we reject the aide's estimate at the0.1

level of significance?

Perform a one-tailed test. Then complete the parts below.

Carry your intermediate computations to three or more decimal places and round your answers as specified in the table. (If necessary, consult alist of formulas.)

(a)State the null hypothesisH

0

and the alternative hypothesisH

1

.H

0

:

H

1

:

(b)Determine the type of test statistic to use.

(Choose one)

(c)Find the value of the test statistic. (Round to three or more decimal places.)

(d)Find the critical value. (Round to three or more decimal places.)

(e)Can we reject the aide's estimate that the proportion of college students who intend to vote is at least70

%

?YesNo