Kizspy | Question: 8
(Choose 1 answer)
(See picture)
A. 1.6860
B. -1.6860 and 1.6860
C. 2.0244
D. -2.0244 and 2.0244
nuever.com.com
The amount of time required to reach a customer service representative
has a huge impact on customer satisfaction. Below is the Excel output
for significance level 0.05 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
Mean
Variance
Observations.
Hypothesized Mean
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
What is (are) the critical value(s) of the relevant hypothesis test if the
level of significance is 0.05?
