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A company has been running television commercials for a new childrens product on five
Chapter 12, Problem AP4.27(choose chapter or problem)
Section I: Multiple Choice Choose the best answer.
A company has been running television commercials for a new children’s product on five different family programs during the evening hours in a large city over a one-month period. A random sample of families is taken, and they are asked to indicate which of the five programs they viewed most often and their rating of the advertised prod-uct. The results are summarized in the following table.
The advertiser decided to use a chi-square test to see if there is a relationship between the family program viewed and the product’s rating. What would be the degrees of freedom for this test?
(a) 3 (c) 12 (e) 19
(b) 4 (d) 18
Questions & Answers
QUESTION:
Section I: Multiple Choice Choose the best answer.
A company has been running television commercials for a new children’s product on five different family programs during the evening hours in a large city over a one-month period. A random sample of families is taken, and they are asked to indicate which of the five programs they viewed most often and their rating of the advertised prod-uct. The results are summarized in the following table.
The advertiser decided to use a chi-square test to see if there is a relationship between the family program viewed and the product’s rating. What would be the degrees of freedom for this test?
(a) 3 (c) 12 (e) 19
(b) 4 (d) 18
ANSWER:Step 1 of 2
The number of columns of the given table is:
The number of rows of the given table is:
The degrees of freedom is the product of the number of columns decreased by 1 and the number of rows decreased by 1 :
