MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Confidence Intervals
When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calcul…
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You want to obtain a sample to estimate the mean monthly student loan payments in Washington state. Based on previous evidence, you believe the population standard deviation is approximately $64.50. You would like to be 95% confident that your estimate is within $6 of the true population mean. How large of a sample size is required?
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Transcribed Image Text:You want to obtain a sample to estimate the mean monthly student loan payments in Washington state. Based on previous evidence, you believe the population standard deviation is approximately $64.50. You would like to be 95% confident that your estimate is within $6 of the true population mean. How large of a sample size is required?
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