The height of maple trees is normally distributed. To estimate the mean size of maple trees in the Adirondacks, a random sample of 15 trees were measured. The following heights (in feet) were recorded: 38 47 28 42 32 38 34 45 40 24 37 49 38 47 47 a) Determine a 90% confidence interval that will contain the population mean height. (Report your answer as an interval on the number line. i.e., (30.64,40.36) Round each end to the nearest hundredth. b) Determine the 95% confidence interval from the same sample. Report in the same format as part a