Suppose we wish to test the hypothesis that an internship program allows its int

Question

Suppose we wish to test the hypothesis that an internship program allows its interns to earn $2,750 per semester and let us assume that this hypothesis is, in fact, true. Which of the following best illustrates the logic of hypothesis testing at the 95% confidence level?

Select one:

a. From among 99 samples, 100 percent of them would generate means that fell within ±2.58 z scores.

b. From among 95 samples, 100 percent of them would generate means that fell within ±1.96 z scores.

c. From among 100 samples, 95 percent of them would generate means that fell within ±2.58 z scores.

d. From among 100 samples, 95 percent of them would generate means that fell within ±1.96 z scores.

e. From among 100 samples, 99 percent of them would generate means that fell within ±1.96 z scores.

Explanation / Answer

Hypothesis are used to give conclusion about a population basis on sample data.So 100 % population should comply to the result of hypothesis, thus option c, d and e are incorrect

The critical value for 95% confidence interval is 1.96 so option a and option c are incorrect

Combining abouve two points

Option b is correct

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