In: Statistics and Probability
Construct a 90% confidence interval to estimate the population mean when x=51 and s=12.4 for the sample sizes below.
a) n=16
b) n=43
c) n=61
a) The 90% confidence interval for the population mean when n=16 is from a lower limit of to an upper limit of .
b) The 90% confidence interval for the population mean when n=43 is from a lower limit of to an upper limit of. (Round to two decimal places as needed.)
c) The 90% confidence interval for the population mean when n=61 is from a lower limit of to an upper limit of . (Round to two decimal places as needed.)