Suppose a marketing research firm would like to examine if the social networking site that a person primarily uses is influenced by his or her age. In a randomly drawn sample, 346 social network users were asked which site they primarily visited. These data are presented in the following table along with each person's age group. Social Networking Site Age Group Site A Site B Site C 2–17 28 15 2 18–34 100 25 11 35–54 96 16 16 55+ 27 4 6 chi-square test statistic = 8.36 Find the chi-square critical value, χ2α.
Suppose a marketing research firm would like to examine if the social networking site that a person primarily uses is influenced by his or her age. In a randomly drawn sample, 346 social network users were asked which site they primarily visited. These data are presented in the following table along with each person's age group. Social Networking Site Age Group Site A Site B Site C 2–17 28 15 2 18–34 100 25 11 35–54 96 16 16 55+ 27 4 6 chi-square test statistic = 8.36 Find the chi-square critical value, χ2α.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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Suppose a marketing research firm would like to examine if the social networking site that a person primarily uses is influenced by his or her age. In a randomly drawn sample, 346 social network users were asked which site they primarily visited. These data are presented in the following table along with each person's age group.
|
|
|
Social Networking Site
|
|
|
|---|---|---|---|---|
|
Age Group
|
Site A
|
Site B
|
Site C
|
|
|
2–17
|
28
|
15
|
2
|
|
|
18–34
|
100
|
25
|
11
|
|
|
35–54
|
96
|
16
|
16
|
|
|
55+
|
27
|
4
|
6
|
chi-square test statistic = 8.36
Find the chi-square critical value, χ2α.
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