1a) A claim has been made that only 5% of men in the U.S. play golf. As an avid golfer, I do not believe this claim. If I want to be 90% confident, and have 90% statistical power, what sample size would I need to disprove this claim if the true percentage of men playing golf is 8%? 1b) A claim has been made that men in the age group 20-30 average the same height in inches in the U.S. and the Netherland (the land of giants, by the way). I do not believe this claim. I want to be 99% confident and have 90% power. If I think both populations have a population standard deviation of 4, what sample size (total) would I need to reject the claim if the two populations different by 0.5 (inches)?
1a) A claim has been made that only 5% of men in the U.S. play golf. As an avid golfer, I do not believe this claim. If I want to be 90% confident, and have 90% statistical power, what sample size would I need to disprove this claim if the true percentage of men playing golf is 8%? 1b) A claim has been made that men in the age group 20-30 average the same height in inches in the U.S. and the Netherland (the land of giants, by the way). I do not believe this claim. I want to be 99% confident and have 90% power. If I think both populations have a population standard deviation of 4, what sample size (total) would I need to reject the claim if the two populations different by 0.5 (inches)?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.2: Introduction To Probability
Problem 52E
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1a) A claim has been made that only 5% of men in the U.S. play golf. As an avid golfer, I do not believe this claim. If I want to be 90% confident, and have 90% statistical power, what
1b) A claim has been made that men in the age group 20-30 average the same height in inches in the U.S. and the Netherland (the land of giants, by the way). I do not believe this claim. I want to be 99% confident and have 90% power. If I think both populations have a population standard deviation of 4, what sample size (total) would I need to reject the claim if the two populations different by 0.5 (inches)?
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