商务统计学笔试复习题
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一、 The manager of the customer service division of a major consumer electronics company is interested in determining whether the customers who have purchased a videocassette recorder made by the company over the past 12 months are satisfied with their products.
1., the population of interest is
a)all the customers who have bought a videocassette recorder made
by the company over the past 12 months.
b)all the customers who have bought a videocassette recorder made
by the company and brought it in for repair over the past 12 months.
c)all the customers who have used a videocassette recorder over the
past 12 months.
d)all the customers who have ever bought a videocassette recorder
made by the company.
ANSWER:
a
2., which of the following will be a good frame for drawing a sample
a)Telephone directory.
b)Voting registry.
c)The list of customers who returned the registration card.
d) A list of potential customers purchased from a database marketing
company.
ANSWER:
c
3.the possible responses to the question "How many videocassette recorders
made by other manufacturers have you used" are values from a
a)discrete random variable.
b)continuous random variable.
c)categorical random variable.
d)parameter.
ANSWER:
a
4. the possible responses to the question "Are you happy, indifferent, or
unhappy with the performance per dollar spent on the videocassette recorder" are values from a
a)discrete numerical random variable.
b)continuous numerical random variable.
c)categorical random variable.
d)parameter.
ANSWER:
c
TYPE: MC DIFFICULTY: Easy
KEYWORDS: categorical random variable, types of data
5.the possible responses to the question "What is your annual income rounded
to the nearest thousands" are values from a
a)discrete numerical random variable.
b)continuous numerical random variable.
c)categorical random variable.
d)parameter.
ANSWER:
a
6.the possible responses to the question "How much time do you use the
videocassette recorder every week on the average" are values from a
a)discrete numerical random variable.
b)continuous numerical random variable.
c)categorical random variable.
d)parameter.
ANSWER:b
7.the possible responses to the question "How many people are there in your
household" are values from a
a)discrete numerical random variable.
b)continuous numerical random variable.
c)categorical random variable.
d)parameter.
ANSWER:a
8.the possible responses to the question "How would you rate the quality
of your purchase experience with 1 = excellent, 2 = good, 3 = decent,
4 = poor,
5 = terrible" are values from a
a)discrete numerical random variable.
b)continuous numerical random variable.
c)categorical random variable.
d)parameter.
ANSWER: c