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The amount of time required to reach a customer service representative has a huge impact on...

The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. A study was conducted 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. Two samples of data were collected (see below). Assume that the population variances in the amount of time for the two hotels are not equal.

Hotel 1 Hotel 2
Mean 2.214 2.0115
Variance 2.951657 3.57855
Observations 20 20



Which of the following statistical tests should be used?

Separate Variance t test

Pooled Variance t test

Independent samples Z test

None of the above is correct
math   Statistics-And-Probability   
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