The average manufacturing work week in metropolitan Chattanooga was 40.1 hours last year.It is believed that the recession has led to a reduction in the average work week.To test the validity of this belief, the hypotheses are A) H₀: μ

Question

The average manufacturing work week in metropolitan Chattanooga was 40.1 hours last year.It is believed that the recession has led to a reduction in the average work week.To test the validity of this belief, the hypotheses are A) H₀: μ < 40.1 H_a: μ ≥ 40.1. B) H₀: μ ≥ 40.1 H_a: μ < 40.1. C) H₀: μ > 40.1 H_a: μ ≤ 40.1. D) H₀: μ = 40.1 H_a: μ ≠ 40.1.

Quizplus · Accepted Answer

The null hypothesis H₀: μ ≥ 40.1 states that the average work week is greater than or equal to 40.1 hours. The alternative hypothesis H_a: μ < 40.1 states that the average work week is less than 40.1 hours. This aligns with the belief that the recession has led to a reduction in the average work week. Therefore, option B is the best choice.

The Average Manufacturing Work Week in Metropolitan Chattanooga Was 40