Kizspy | Question: 21
(Choose 1 answer)
(See picture)
A. Insufficient information exists on which to decide.
B. The null hypothesis is rejected.
C. The null hypothesis is not rejected.
FUOVERFLOW
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
2.214
2.951657
20
0
Mean
Variance
Observations
Difference
df
t Stat
Hypothesized Mean
0.354386
0.362504
1.685953
0.725009
2.024394
P(T<=t) one-tail
t Critical one-tail
P(T<=t) two-tail
t Critical two-tail
Hotel 2
2.0115
3.57855
20
38
Let a = 0.05. Which of the following represents the result of the test on a difference in the variabilities of the amount of time required to reach a customer service representative between the two hotels?
Let F0.05,19,19 2.17; F0.025,19,19 = 2.53
