Explanation Given info: The data provides the two-way table for the variables Age and Internet usage. Calculation: The claim is to test whether the data provide sufficient evidence to conclude that an association exists between age and Internet usage. If the claim is rejected, then there is no association exists between age and Internet usage. The test hypotheses are given below: Null hypothesis: H 0 : There is no association exists between age and Internet usage. Alternative hypothesis: H a : There is an association exists between age and Internet usage. The requirements that must be satisfied to perform a test of independence are, All the expected frequencies are greater than or equal to 1. That is, all E i ≥ 1 where E i represents the expected counts of category i. Not more than 20% of the expected frequencies are less than 5. Expected frequencies: Software procedure: Step by step procedure to obtain the p value using the MINITAB software: Choose Stat > Tables > Cross tabulation Select Summarized data in the two way table. In Columns containing the table , enter the columns of 18-24, 25-64 and 65+. In Rows , select USAGE. In Column, write AGE In Statistics , select Expected cell counts. Click OK . Output using the MINITAB software is given below:

10th Edition

ISBN: 9780321989178

Author: Neil A. Weiss

Publisher: PEARSON

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Chapter 13, Problem 19RP

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Test whether the data provide sufficient evidence to conclude that there is an association exists between age and Internet usage.

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Chapter 13 Solutions

Introductory Statistics (10th Edition)

Ch. 13.1 - What is meant by saying that a variable has a...Ch. 13.1 - How do you identify different chi-square...Ch. 13.1 - Prob. 3E Ch. 13.1 - The t-table has entries for areas of 0.10, 0.05,...Ch. 13.1 - Prob. 5E Ch. 13.1 - In Exercises 13.5-13.8, use Table VII to find the...Ch. 13.1 - Prob. 7E Ch. 13.1 - Prob. 8E Ch. 13.2 - Why is the phrase goodness of fit used to describe...Ch. 13.2 - Prob. 10E

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Test whether the data provide sufficient evidence to conclude that there is an association exists between age and Internet usage.

Solution Summary: The author explains that the data provides the two-way table for the variables Age and Internet usage.

Test whether the data provide sufficient evidence to conclude that there is an association exists between age and Internet usage.

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