Appropriate null and alternative hypotheses


A politician claims that she will receive 65% of the vote in an upcoming election. The results of the properly designed random sample of 100 voters showed that 52 of those sampled will vote for her. Is it likely that her assertion is correct at the 0.05 level of significance?

(a) Determine the appropriate null and alternative hypotheses.

Ho: p 0.65

Ha: p 0.65

(ii) Find z. (Give your answer correct to two decimal places.)

(iii) Find the p-value. (Give your answer correct to four decimal places.)

(b) State the appropriate conclusion.

Reject the null hypothesis, there is not significant evidence that she will receive less than 65% of the vote.

Reject the null hypothesis, there is significant evidence that she will receive less than 65% of the vote.

Fail to reject the null hypothesis, there is not significant evidence that she will receive less than 65% of the vote.

Fail to reject the null hypothesis, there is significant evidence that she will receive less than 65% of the vote.

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Basic Statistics: Appropriate null and alternative hypotheses
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