You wish to estimate, with 95% confidence, the population proportion of U.S. adults who think they should

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You wish to estimate, with 95% confidence, the population proportion of U.S. adults who think they should be saving more money. Your estimate must be accurate within 5% of the population proportion.

(a) No preliminary estimate is available. Find the minimum sample size needed.

(b) Find the minimum sample size needed, using a prior study that found that 63% of U.S. adults think that they should be saving more money.

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 07:54 AM

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You wish to estimate, with 95% confidence, the population proportion of U.S. adults who think they should

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a n p q z c E 2 050 050 196 005 2 38416 3...View the full answer

Elementary Statistics Picturing The World

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