content area top Part 1 Construct a 99% confidence interval to estimate the population mean with x=112 and =28 for the following sample sizes. a) n = 32 b) n = 48 c) n = 60 Question content area bottom Part 1 a) With 99% confidence, when n=32, the population mean is between the lower limit of enter your response here and the upper limit of enter your response here. (Round to two decimal places as needed.)