TABLE 10-13 The Amount of Time Required to Reach a Customer Service

Multiple Choice

TABLE 10-13
The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. Below is the Excel output from a study to see whether there is evidence of a difference in the mean amounts of time required to reach a customer service representative between two hotels. Assume that the population variances in the amount of time for the two hotels are not equal.

-Referring to Table 10-13, what is(are) the critical value(s) of the relevant hypothesis test if the level of significance is 0.05?

A) 1.6860
B) ±1.6860
C) 2.0244
D) ±2.0244