The average hourly wage of computer programmers with 2 years of experience has been $21.80. Because of high demand for computer programmers, it is believed there has been a significant increase in the average hourly wage of computer programmers. To test whether or not there has been an increase, the correct hypotheses to be tested are A) H₀: μ 21.80 H_a: μ ≤ 21.80. D) H₀: μ ≤ 21.80 H_a: μ 21.80.

Question

The average hourly wage of computer programmers with 2 years of experience has been $21.80. Because of high demand for computer programmers, it is believed there has been a significant increase in the average hourly wage of computer programmers. To test whether or not there has been an increase, the correct hypotheses to be tested are A) H₀: μ < 21.80 H_a: μ ≥ 21.80. B) H₀: μ = 21.80 H_a: μ ≠ 21.80. C) H₀: μ > 21.80 H_a: μ ≤ 21.80. D) H₀: μ ≤ 21.80 H_a: μ > 21.80.

Quizplus · Accepted Answer

The null hypothesis (H0) should reflect no change or the status quo, which in this case is the average hourly wage being $21.80 or less, and the alternative hypothesis (Ha) should reflect the claim to be tested, which is an increase in the average hourly wage, hence μ > 21.80.

The Average Hourly Wage of Computer Programmers with 2 Years