JGV Company has conducted a study on the satisfaction of its franchisees towards the franchise package that they provide. Specifically, they would like to determine if a difference in the average satisfaction score exists between two outlet concepts: full store and kiosk. A random sample of 9 full store and 11 kiosks of their franchisees were selected and the information needed was recorded. The followings are the results of the study. Group Statistics Outlet Concept Mean Std. Deviation Std. Error Mean N Full Store Satisfaction Kiosk Overall 9 6.6667 1.50000 50000 11 5.7273 2.76011 83220 Independent Samples Test Overall Satisfaction

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Author:Amos Gilat
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3. JGV Company has conducted a study on the satisfaction of its franchisees towards the
franchise package that they provide. Specifically, they would like to determine if a
difference in the average satisfaction score exists between two outlet concepts: full store
and kiosk. A random sample of 9 full store and 11 kiosks of their franchisees were selected
and the information needed was recorded. The followings are the results of the study.
Group Statistics
Outlet Concept
Std. Deviation
Std. Error Mean
N
Mean
50000
Overall
Satisfaction Kiosk
Full Store
9.
6.6667
1.50000
11
5.7273
2.76011
.83220
Independent Samples Test
Overall Satisfaction
Equal variances Equal variances
not assumed
assumed
Levene's
Test for
Equality of
Variances
F
10.790
Sig.
.004
.914
968
df
18
15.928
Sig. (2-tailed)
373
348
t-test for
Equality of
Means
Mean Difference
93939
.93939
Std. Error Difference
1.02812
97086
-1.11948
95% Confidence Lower
Interval of the
Difference
-1.22061
Upper
3.09940
2.99827
a) What can you conclude about the variances of the two populations?
b) Calculate the margin of error for constructing a 95% confidence interval for the mean
difference.
c) State the 95% confidence interval for the difference in the average satisfaction score
between full store and kiosk outlet.
Transcribed Image Text:3. JGV Company has conducted a study on the satisfaction of its franchisees towards the franchise package that they provide. Specifically, they would like to determine if a difference in the average satisfaction score exists between two outlet concepts: full store and kiosk. A random sample of 9 full store and 11 kiosks of their franchisees were selected and the information needed was recorded. The followings are the results of the study. Group Statistics Outlet Concept Std. Deviation Std. Error Mean N Mean 50000 Overall Satisfaction Kiosk Full Store 9. 6.6667 1.50000 11 5.7273 2.76011 .83220 Independent Samples Test Overall Satisfaction Equal variances Equal variances not assumed assumed Levene's Test for Equality of Variances F 10.790 Sig. .004 .914 968 df 18 15.928 Sig. (2-tailed) 373 348 t-test for Equality of Means Mean Difference 93939 .93939 Std. Error Difference 1.02812 97086 -1.11948 95% Confidence Lower Interval of the Difference -1.22061 Upper 3.09940 2.99827 a) What can you conclude about the variances of the two populations? b) Calculate the margin of error for constructing a 95% confidence interval for the mean difference. c) State the 95% confidence interval for the difference in the average satisfaction score between full store and kiosk outlet.
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