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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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
Transcribed Image Text:From a sample of 37 graduate students, the mean number of months of work experience prior to entering an MBA program was 34.44. The national standard deviation is known to be 20 months. What is a 99% confidence interval for the population mean?
A 99% confidence interval for the population mean is
(Use ascending order. Round to two decimal places as needed.)
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- Construct a 95% confidence interval of the population proportion using the given information. x=80 n= 200 Give lower and upper boundarrow_forwardA random sample of 500 observations yields x̅ =400 and s=50. What is the 95% confidence interval for the population mean?arrow_forwardFor a 95% confidence interval and n=21 give the Chi-squared right value.arrow_forward
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