Confidence interval, how many executives should be interviewed
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A survey is being planned to determine the mean amount of time corporate executives watch television. The pilot indicated the mean time is 12 hours with a standard deviation of 3 hours. It is desired to estimate the mean viewing time within one-quarter hour. Using the 95% confidence interval, how many executives should be interviewed?
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The expert uses 95% confidence intervals to determine how many executives should be interviewed.
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- BE, Bangalore University, India
- MS, University of Wisconsin-Madison
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