Are avid readers more likely to wear glasses than those who read less frequently? Three hundred men in Ohio were selected at random and characterized as to whether they wore glasses and whether the amount of reading they did was above average, average, or below average. The results are presented in the following table. Glasses? Amount of reading Yes No Above average 47 26 Average 48 78 Below average 31 70 Total 126 174 Suppose we wish to test the null hypothesis that there is no association between the amount of reading and wearing glasses. Under the null hypothesis, what is the expected number of above average readers who wear glasses?

Are avid readers more likely to wear glasses than those who read less frequently? Three hundred men in Ohio were selected at random and characterized as to whether they wore glasses and whether the amount of reading they did was above average, average, or below average. The results are presented in the following table. Glasses? Amount of reading Yes No Above average 47 26 Average 48 78 Below average 31 70 Total 126 174 Suppose we wish to test the null hypothesis that there is no association between the amount of reading and wearing glasses. Under the null hypothesis, what is the expected number of above average readers who wear glasses?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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	Glasses?
Amount of reading	Yes	No
Above average	47	26
Average	48	78
Below average	31	70
Total	126	174