A researcher wishes to estimate the proportion of adult males who are less than 5 feet 5 inches tall. She wants to be 90% confident that her estimate is within 4% of the true proportion (Round to the nearest whole number): (a) How large a sample should be taken if in a sample of 300 males, 30 were less than 5 feet 5 inches tall? (b) If no estimate of the sample proportion is available, how large should the sample be?

A researcher wishes to estimate the proportion of adult males who are less than 5 feet 5 inches tall. She wants to be 90% confident that her estimate is within 4% of the true proportion (Round to the nearest whole number): (a) How large a sample should be taken if in a sample of 300 males, 30 were less than 5 feet 5 inches tall? (b) If no estimate of the sample proportion is available, how large should the sample be?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter7: Percents

Section: Chapter Questions

Problem 10PTTS

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