The Pew Forum on Religion and Public Life reported on Dec. 9, 2009, that in a survey
Question:
a. Calculate and interpret a confidence interval at the 99% confidence level for the proportion of all adult Americans who believe in astrology.
b. What sample size would be required for the width of a 99% CI to be at most .05 irrespective of the value of p̂?
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a With p 25 n 2003 and z 2 z005 258 the 99 confidence interval for p is b Usin...View the full answer
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Related Book For
Probability And Statistics For Engineering And The Sciences
ISBN: 9781305251809
9th Edition
Authors: Jay L. Devore
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