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 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 Ha: μ ≥ 21.80
B) H0: μ = 21.80 Ha: μ ≠ 21.80
C) H0: μ > 21.80 Ha: μ ≤ 21.80
D) H0: μ ≤ 21.80 Ha: μ > 21.80