(Use the Following Information for the Next Two Questions

Multiple Choice

(Use the following information for the next two questions.)
The manager of a car dealership was concerned that female customers found sales representatives to be intimidating. The manager asked a local market research firm to determine whether or not significant gender based differences existed in attitudes toward automobile sales personnel.
The research supplier used random digit dialing to contact 200 men and women over the age of 21 in the dealer's market area. Respondents were asked to rate automobile salespeople in the local area on helpfulness, willingness to deal, answering questions fully, courtesy, and patience using a 7-point Likert scale with 1 being poor to 7 being excellent. All respondents were also asked if new car salespeople were intimidating (yes or no) . Only one person per household was asked to respond to the survey and the variances between the two groups on all questions were assumed to be equal.
-The two populations are assumed to have equal variances. To check this assumption, which of the tests below should be used?

A) the Chi-square test
B) the Kolmogorov-Smirnov test
C) the F test
D) the Chebov test
E) none of the above