A clinic offers a weight-loss program. The table below gives the amounts of weight loss, in pounds, for a random sample of 20 of its clients at the conclusion of the program. Assume that the data are normally distributed. Complete parts (a) and (b) 17 13 22 6 16 5 12 11 18 13 17 24 13 12 14 19 27 20 10 29 a. Find a 98% confidence interval for the population mean. The 98% confidence interval is from a lower limit of to an upper limit of (Round to two decimal places as needed.)

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