3 Select the best response a A total of 100 randomly selecte

3. Select the best response.

a. A total of 100 randomly selected new car owners were surveyed and asked to select the primary reason for purchasing their new car from a list of 4 choices. These data were used to assess if gender (male, female) and purchase reason were related. The appropriate test to conduct is the chi-square test of ______________.

goodness of fit homogeneity independence

b. Mr. P. Nut claims to put equal amounts of the different types of nuts in his 20 oz. mixed nuts jars. The jars of mixed nuts contain peanuts, cashews, walnuts, and pecans. To show that his claim holds, he randomly samples some 20 oz. jars off the production line and determines the number of each type of nut in each jar. The appropriate test to conduct is the chi-square test of .

goodness of fit homogeneity independence

c. A study was conducted to compare two treatments, Treatment I and Treatment II, for heartburn. The 100 subjects were randomly divided into two equal-sized treatment groups. After a 3-month period of using the assigned treatment for heartburn, each subject was asked to rate the effectiveness of the treatment as: highly effective, somewhat effective, or not effective. The appropriate test to conduct is the chi-square test of ________.

goodness of fit homogeneity independence

Solution