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An instructor stated at the beginning of a course that on the average 35% of students do not pass the exam. After the exam, a random sample of 100 students who took the exam was selected, and 25 of them did not pass.

a) State the null and alternative hypotheses.

b) Proceeding from a significance lenel of 3% , make an appropriate decision and give a one sentance justification of your decision.

c) Use the confidence interval method to test the hypothesis at the same significance level.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9982063

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