Kizspy | Question: 84
(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.
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
P(T<=t) one-tail
t Critical one-tail
0.354386
0.362504
1.685953
0.725009
P(T<=t) two-tail
2.024394
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
