A survey of 430 randomly chosen adults finds that 47 of 222 men and 37 of 208
Question:
a) Is there evidence that the sex of the person and whether they buy books online are associated?
b) If your conclusion in fact proves to be wrong, did you make a Type I or Type II error?
c) Give a 95% confidence interval for the difference in proportions of buying online for men and women.
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a The proportion of all adults in the sample that bought bo...View the full answer
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Related Book For
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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