Kizspy | Question: 25
(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.
QjOVERFLOW.COM
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
Mean
Variance
Observations
Hypothesized Mean
Hotel 1
2.214
Hotel 2
2.0115
2.951657
3.57855
20
20
0
Difference
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
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 Fo.05.19.19 2.17; F0.025.19.19 = 2.53
