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.

Company 1	Company 2
n1= 80	n2= 60
= $10.80	= $10.00
= $2.00	= $1.50

Refer to Exhibit 10-13. What is the appropriate test statistic for this hypothesis test?

Paired t-test

Z-test approximation

Pooled variance t-test

Unequal variance t-test