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

question 76

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 assumptions are necessary for testing if there is evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels to be valid?

• A) Both sampled populations are normally distributed.
• B) Both samples are random and independent.
• C) Neither A nor B is necessary.
• D) Both A and B are necessary.

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