Mr. Isdol Shivute, a popular political candidate, has employed a consultant famous for polls to help...
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Mr. Isdol Shivute, a popular political candidate, has employed a consultant famous for polls to help him determine the proportion of voters who are likely to vote for him in the next general election. If a pilot study conducted gave his popularity as 45%, determine the number of people that the consultant should consider for this survey at a desired level of confidence of 90% and the maximum allowable error of 5%. A student calculates a 93% confidence interval for the population mean when the population standard deviation o is unknown and n = 9. The confidence interval is -24.3 cents to 64.3 cents. Find the sample mean used. Mr. Isdol Shivute, a popular political candidate, has employed a consultant famous for polls to help him determine the proportion of voters who are likely to vote for him in the next general election. If a pilot study conducted gave his popularity as 45%, determine the number of people that the consultant should consider for this survey at a desired level of confidence of 90% and the maximum allowable error of 5%. A student calculates a 93% confidence interval for the population mean when the population standard deviation o is unknown and n = 9. The confidence interval is -24.3 cents to 64.3 cents. Find the sample mean used.
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Introductory Statistics Exploring The World Through Data
ISBN: 9780135163146
3rd Edition
Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan
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