Results from previous studies showed 79% of all high school seniors from a certa

Question

Results from previous studies showed 79% of all high school seniors from a certain city plan to attend college after graduation. A random sample of 200 high school seniors from this city reveals that 162 plan to attend college. Does this indicate that the percentage has increased from that of previous studies? Test at the 5% level of significance. State the null and alternative hypotheses. A. H0: p .79, H1: p > .79 B. H0: $hat{p}$ = .79, H1: $hat{p}$ > .79 C. H0: m = .79, H1: m > .79 D. H0: p = .79, H1: p .79

Explanation / Answer

Since we need to test the claim whether the percentage has increased from that of previous studies or not, the alternative hypothesis will contain ">" sign.

Hence,

Our null and alternative hypotheses will be:

H0: p .79, H1: p > .79

Option A is correct.

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