Exhibit 10-13
in Order to Determine Whether or Not There $\mu$

Multiple Choice

Exhibit 10-13
In order to determine whether or not there is a significant difference between the hourly wages of two companies, the following data have been accumulated.
-Refer to Exhibit 10-13. The null hypothesis for this test is

A) $\mu$ ₁ - $\mu$ ₂ $\neq$ 0
B) $\mu$ ₁ - $\mu$ ₂ > 0
C) $\mu$ ₁ - $\mu$ ₂ < 0
D) $\mu$ ₁ - $\mu$ ₂ = 0