construct a 95% confidence interval to estimate the population mean when x=121 and s=29

Construct a 95% confidence interval to estimate the population mean when x=121 and s=29 for the sample sizes below. a) n=40 b) n=50 c) n=90 Click here to view page 1 of the critical t-score table. Click here to view page 2 of the critical t-score table. a) The 95% confidence interval for the population mean when n=40 is from a lower limit of to an upper limit of (Round to two decimal places as needed) b) The 95% confidence interval for the population mean when n=50 is from a lower limit of to an upper limit of (Round to two decimal places as needed) c) The 95% confidence interval for the population mean when n=90 is from a lower limit of to an upper limit of (Round to two decimal places as needed)