To perform a follow-up analysis of the test in exercise
Answer to Problem 41E
The highest chi-square totals for the Patch plus drug.
Explanation of Solution
In the question, it is given different ways so that a person can quit smoking and the table with different ways and with their success. Thus, the summary of these data in a two-way table can be represented as:
Thus, the expected counts are the row total multiplied by the column total, divided by the
Thus, the chi-square statistic is the sum of squared deviations between observed and expected counts divided by the expected count as:
Thus, from above we note that the highest chi-square totals for the Patch plus drug. This means that the treatment Patch plus drug give the best results and thus this treatment should be used.
Chapter 11 Solutions
The Practice of Statistics for AP - 4th Edition
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