c. There exists some relevant external secondary data on virtually any problem a
marketer might confront.
d. In general, the single most productive source document of external secondary data is
the sales invoice.
e. The amount of secondary data available is increasing.
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