of her customers. In particular, she would like to investigate the belief that the ages of the customers of sub shops, hamburger emporiums, and fast-food chicken restaurants are different. The ages of eight randomly selected customers of each of the restaurants are recorded and listed below. From previous analyses we know that the ages are normally distributed with equal variances for each group. True or False: It can be inferred at the 5% significance level that there are differences in ages among the customers of the three restaurants.
of her customers. In particular, she would like to investigate the belief that the ages of the customers of sub shops, hamburger emporiums, and fast-food chicken restaurants are different. The ages of eight randomly selected customers of each of the restaurants are recorded and listed below. From previous analyses we know that the ages are normally distributed with equal variances for each group. True or False: It can be inferred at the 5% significance level that there are differences in ages among the customers of the three restaurants.
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
The marketing manager of a sub shop chain is in the process of examining some of the demographic characteristics of her customers. In particular, she would like to investigate the belief that the ages of the customers of sub shops, hamburger emporiums, and fast-food chicken restaurants are different. The ages of eight randomly selected customers of each of the restaurants are recorded and listed below. From previous analyses we know that the ages are
True or False: It can be inferred at the 5% significance level that there are differences in ages among the customers of the three restaurants.

Transcribed Image Text:Subs
23
19
25
17
36
25
28
31
Error
Total
Customers' Ages
Hamburger
26
Source of Variation
Treatments
20
18
35
33
25
19
17
Chicken
25
28
36
23
39
27
38
31
SS
df
203.583
2
863.750 21
1067.333 23
MS
101.792
41.131
F
2.475
P-value
0.1084
F critical
3.467
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