Question

In: Statistics and Probability

A recent study of gender preferences among car shoppers found that men and women equally favor...

A recent study of gender preferences among car shoppers found that men and women equally favor economy cars. A marketing analyst doubts these results. He believes that a person’s gender influences whether or not he/she purchases an economy car. He collects data on 400 recent car purchases cross-classified by gender and type of car (economy car versus noneconomycar). The results are shown as follows:

ECONOMY CAR NON-ECONOMY CAR
FEMALE 50 60
MALE 120 170

a. State null and alternative hypotheses to determine whether the sample data support the marketing analyst’s claim.

b. What are expected frequencies for each item?

c. At the 10% significance level, what is the degree of freedom? What is the value of the test statistic? What is the critical value? Using the critical value approach, what is your conclusion? Interpret.

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Expert Solution

orchestra answered 2 years ago
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