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Problem 4 4. You are conducting a study on the upcoming Democratic presidential primary, and
want to know what proportion of voting population will cast a vote for Hillary Clinton. You took
a simple random sample 105 voters, and 65 of the voters indicated they would vote for Hillary
Clinton. Let P denotes proportion of Hillary Clinton voters a) what is p AT b)test the null
hypotheses that Pa 5.Versus alternative P .5 at oa .01 significance level. cwhat is the p- value of
the test statistic you calculated in b)? would you reject at the null a .02? would you reject at the
null ou 3.001? d) test the null hypothesis P .5 versus the two sided alternative at o .01
significance level. e) What is the two sided p- value of the test statistic?
Solution
1.
The proportion of people in population that voted for Hilary Clinton
2.
H0:P = P0 VS Ha :P # P0
n(po) = 65(.5) = 32.5 and n(1?po) = 65(5) = 325

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Problem 4 4. You are conducting a study on the upcoming Democratic p.pdf

  • 1. Problem 4 4. You are conducting a study on the upcoming Democratic presidential primary, and want to know what proportion of voting population will cast a vote for Hillary Clinton. You took a simple random sample 105 voters, and 65 of the voters indicated they would vote for Hillary Clinton. Let P denotes proportion of Hillary Clinton voters a) what is p AT b)test the null hypotheses that Pa 5.Versus alternative P .5 at oa .01 significance level. cwhat is the p- value of the test statistic you calculated in b)? would you reject at the null a .02? would you reject at the null ou 3.001? d) test the null hypothesis P .5 versus the two sided alternative at o .01 significance level. e) What is the two sided p- value of the test statistic? Solution 1. The proportion of people in population that voted for Hilary Clinton 2. H0:P = P0 VS Ha :P # P0 n(po) = 65(.5) = 32.5 and n(1?po) = 65(5) = 325