In order to determine whether or not there is a significant

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.

The point estimate of the difference between the means is

A) 20

B) 0.8

C) 0.5

D)-20

Solution

The point estimate is the difference between sample means,

X1 - X2 = 10.80 - 10.00 = 0.80

Thus, it is

OPTION B: 0.8. [ANSWER]