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Construct a 98​% confidence interval to estimate the population mean when x overbar =64 and s​...

Construct a 98​% confidence interval to estimate the population mean when x overbar =64 and s​ =12.8 for the sample sizes below.

​a) n= 21

​b) n=41

​c) 56


​

a) The 98​% confidence interval for the population mean when n=21 is from a lower limit of _______to an upper limit of ________.

​(Round to two decimal places as​ needed.)

b) The 98​% confidence interval for the population mean when n=41 is from a lower limit of _______to an upper limit of ________.

​(Round to two decimal places as​ needed.)

c) The 98​% confidence interval for the population mean when n=56 is from a lower limit of _______to an upper limit of ________.

​(Round to two decimal places as​ needed.)

Math   Statistics-And-Probability   
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