The Average Hourly Wage of Computer Programmers with 2 Years

Multiple Choice

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.