A pediatrician records the weights of 1-month-old baby girls (measured in kg): 4.65 4.8 3.82 3.68 3.94 4.92 3.5 4.21 4.44 3.7 4.81 4.01 4.53 4.46 You may assume that the data is approximately normally distributed. T-Distribution Table a. Calculate the sample mean and standard deviation. a. Calculate the sample mean and standard deviation. X = Round to 3 significant digits S Round to 3 significant digits 0 0 A b. Construct the 90% confidence interval for the mean 1-month-old weight of all baby girls. b. Construct the 90% confidence interval for the mean 1-month-old weight of all baby girls. E = Round to 3 significant digits 0.00 < < Round to 2 decimal places 0.00 K