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[Step-by-Step] The amount of time required to reach a customer service representative has a huge impact on customer satisfaction. Below is the Excel output

Question: 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.

t -Test: Two-Sample Assuming Unequal Variances
Hotel 1 Hotel 2
Mean 2.214 2.0115
Variance 2.951657 3.57855
Observations 20 20
Hypothesized Mean Difference 0
df 38
t Stat 0.354386
P(T<=t) one-tail 0.362504
t Critical one-tail 1.685953
P(T<=t) two-tail 0.725009
t Critical two-tail 2.024394
  1. State the null and alternative hypotheses 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.
  2. What is the value of the test statistic 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? Explain how you obtain your answer.
  3. What is the critical value 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 at the 5% level of significance? Explain how you obtain your answer.
  4. Suppose α = 0.05. Which of the following represents the correct conclusion for a test on a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels? Show how you obtain your answer.
    1. There is no evidence of a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels.
    2. 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.
    3. There is no evidence that the variabilities of the amount of time required to reach a customer service representative between the two hotels are the same.
    4. There is evidence that the variabilities of the amount of time required to reach a customer service representative between the two hotels are the same.

Price: $2.99
Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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