CENGAGENOW FOR ANDERSON/SWEENEY/WILLIAM
CENGAGENOW FOR ANDERSON/SWEENEY/WILLIAM
13th Edition
ISBN: 9781337094399
Author: Cochran
Publisher: IACCENGAGE
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Chapter 7.6, Problem 41E

The Food Marketing Institute shows that 17% of households spend more than $100 per week on groceries. Assume the population proportion is p = .17 and a sample of 800 households will be selected from the population.

  1. a. Show the sampling distribution of p ¯ , the sample proportion of households spending more than $100 per week on groceries.
  2. b. What is the probability that the sample proportion will be within ±.02 of the population proportion?
  3. c. Answer part (b) for a sample of 1600 households.
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Chapter 7 Solutions

CENGAGENOW FOR ANDERSON/SWEENEY/WILLIAM

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