Concept explainers
The branch manager of an outlet (Store 1) of a nationwide chain of pet supply stores wants to study characteristics of her customers. In particular, she decides to focus on two variables: the amount of money spent by customers and whether the customer own only one dog, only one cat, or more than one dog and/or cat. The results from a sample of 70 customers are as follows:
• Amount of money spent:
• Thirty-seven customers own only a dog.
• Twenty-six customer own only a cat.
• Seven customers own more than one dog and/or cat.
a. Construct a
b. Construct a
The branch manager of another outlet (Store 2) wishes to conduct a similar survey in this store. The manager does not have access to the information generated by the manager of Store 1. Answer the following questions:
a. What
b. How many customer need to be selected to have
c. Based on your answer to (c) and (d), how large a sample should the manager take?
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Basic Business Statistics, Student Value Edition
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