Kizspy Question: 2
(Choose 1 answer)
(See picture)
A. 1.6860
B. 1.6860 and 1.6860
C. 2.0244
D. -2.0244 and 2.0244
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
2.214
2.951657
Hotel 2
2.0115
3.57855
Observations
20
20
Hypothesized Mean
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 0.10?
