The average number of hours for a random sample of mail order pharmacists from company A was 50.1 hours last year. It is believed that changes to medical insurance have led to a reduction in the average work week. To test the validity of this belief, the hypotheses are A)H₀: u 50.1, H_a: u 50.1. D)H₀: u ≥ 50.1, H_a: u

Question

The average number of hours for a random sample of mail order pharmacists from company A was 50.1 hours last year. It is believed that changes to medical insurance have led to a reduction in the average work week. To test the validity of this belief, the hypotheses are A)H₀: u > 50.1, H_a: u < 50.1. B)H₀: u = 50.1, H_a: u = 50.1. C)H₀: u ≤ 50.1, H_a: u > 50.1. D)H₀: u ≥ 50.1, H_a: u < 50.1.

Quizplus · Accepted Answer

The correct hypotheses for testing if the average work week has reduced from 50.1 hours are: Null hypothesis (H0): u ≥ 50.1 (the average is not less than 50.1 hours), and Alternative hypothesis (Ha): u < 50.1 (the average has decreased).

The Average Number of Hours for a Random Sample of Mail