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(Choose 1 answer)
The amount of time required to reach a
customer service representative has a huge
impact on customer satisfaction. See picture
for the Excel output from a study 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
Hotel 2
Mean
2.214
2.0115
Variance
2.951657
3.57855
Observations
20
20
Hypothesized Mean
0
Difference
df
38
Which of the following represents the relevant
hypotheses tested?
t Stat
0.354386
P(T<=t) one-tail
0.362504
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t Critical one-tail
1.685953
P(T<=t) two-tail
0.725009
A. (iv)
t Critical two-tail
2.024394
B. (iii)
C. (ii)
D. (i)
FUQ.sh
sh the exam.
(i)
Ho: H0 versus H₁: μ- < 0
(ii)
Ho: M-0 versus H₁: μ-μ> 0
(iii) Ho - = 0 versus H₁: μ-μ11 0
(iv) Ho - 0 versus H₁: μ-μ₁ = 0
