As in Exercise 13, from a survey of coworkers you find that 48% of 200 have already
Question:
a) How would the confidence interval change if the sample size had been 800 instead of 200?
b) How would the confidence interval change if the confidence level had been 90% instead of 95%?
c) How would the confidence interval change if the confidence level had been 99% instead of 95%?
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a It would be half as wide sample size in the denominator and in the square root b If th...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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