EBK STATISTICS FOR BUSINESS & ECONOMICS
13th Edition
ISBN: 8220101456380
Author: Anderson
Publisher: CENGAGE L
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Chapter 5.5, Problem 40E
A study conducted by the Pew Research Center showed that 75% of 18- to 34-year-olds living with their parents say they contribute to household expenses (The Wall Street Journal, October 22, 2012). Suppose that a random sample of fifteen 18- to 34-year-olds living with their parents is selected and asked if they contribute to household expenses.
- a. Is the selection of the fifteen 18- to 34-year-olds living with their parents a binomial experiment? Explain.
- b. If the sample shows that none of the fifteen 18- to 34-year-olds living with their parents contribute to household expenses, would you question the results of the Pew Research Study? Explain.
- c. What is the
probability that at least 10 of the fifteen 18- to 34-year-olds living with their parents contribute to household expenses?
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Chapter 5 Solutions
EBK STATISTICS FOR BUSINESS & ECONOMICS
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