N1fxAВCEFGHKMN6.106.68Are the samples related (i.e. dependent) or independent?11120.385.645.124.08Null Hypothesis:13146.466.17156.199.913.795.47Alternative Hypothesis:161718Interpretation of Excel output (Conclusion of Hypothesis test):192021Business implications:2223242526 N1frAВCEFGHKMBranch 1 (u,) Branch 2 (u,) A bank with a branch (Branch 1) located in a commercial district of a city has developed an improvedprocess for serving customers during the noon-to-1 p.m. lunch period. The waiting time (operationallydefined as the time elapsed from when the customer enters the line until he or she reaches the tellerwindow) needs to be shortened to increase customer satisfaction. A random sample of 15 customers isselected and the results (in minutes) are shown in the table on the left. In addition, suppose that anotherbranch (Branch 2), located in a residential area, is also concerned with the noon-to-1 p.m. lunch period. Arandom sample of 15 customers is selected and the results are shown in the table on the left. Assumingthat the population variances from both branches are equal, is there evidence of a significant difference inthe mean waiting time between the two branches? Use alpha = 0.01.4.219.66235.555.903.028.0245.135.7964.778.73Solve this question using Excel. State the null & alternative hypotheses clearly. Interpret the Excel outputand state your conclusion clearly. Provide all your results and comments on this sheet. Specifically, type inyour answers in the spaces provided below:72.343.8283.548.01Please watch the videos (in Excel Lab 2.2a and Excel Lab 2.2b) related to hypothesis testing with twosamples prior to attempting this question.93.208.35104.5010.49116.106.68Are the samples related (i.e. dependent) or independent?120.385.645.124.08Null Hypothesis:13146.466.17156.199.913.795.47Alternative Hypothesis:16

Let μ1 be the mean waiting for branch 1 and μ2 be the mean waiting time in branch 2. The samples…

Answered: Are the samples related (i.e.…

Are the samples related (i.e. dependent) or independent? Null Hypothesis: Alternative Hypothesis: Interpretation of Excel output (Conclusion of Hypothesis test): Business implications:

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

N1
fx
A
В
C
E
F
G
H
K
M
N
6.10
6.68
Are the samples related (i.e. dependent) or independent?
11
12
0.38
5.64
5.12
4.08
Null Hypothesis:
13
14
6.46
6.17
15
6.19
9.91
3.79
5.47
Alternative Hypothesis:
16
17
18
Interpretation of Excel output (Conclusion of Hypothesis test):
19
20
21
Business implications:
22
23
24
25
26

N1
fr
A
В
C
E
F
G
H
K
M
Branch 1 (u,) Branch 2 (u,) A bank with a branch (Branch 1) located in a commercial district of a city has developed an improved
process for serving customers during the noon-to-1 p.m. lunch period. The waiting time (operationally
defined as the time elapsed from when the customer enters the line until he or she reaches the teller
window) needs to be shortened to increase customer satisfaction. A random sample of 15 customers is
selected and the results (in minutes) are shown in the table on the left. In addition, suppose that another
branch (Branch 2), located in a residential area, is also concerned with the noon-to-1 p.m. lunch period. A
random sample of 15 customers is selected and the results are shown in the table on the left. Assuming
that the population variances from both branches are equal, is there evidence of a significant difference in
the mean waiting time between the two branches? Use alpha = 0.01.
4.21
9.66
2
3
5.55
5.90
3.02
8.02
4
5.13
5.79
6
4.77
8.73
Solve this question using Excel. State the null & alternative hypotheses clearly. Interpret the Excel output
and state your conclusion clearly. Provide all your results and comments on this sheet. Specifically, type in
your answers in the spaces provided below:
7
2.34
3.82
8
3.54
8.01
Please watch the videos (in Excel Lab 2.2a and Excel Lab 2.2b) related to hypothesis testing with two
samples prior to attempting this question.
9
3.20
8.35
10
4.50
10.49
11
6.10
6.68
Are the samples related (i.e. dependent) or independent?
12
0.38
5.64
5.12
4.08
Null Hypothesis:
13
14
6.46
6.17
15
6.19
9.91
3.79
5.47
Alternative Hypothesis:
16

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