c.

2c The UNIVARIATE Procedure Variable: wtgain Moments N 270 Sum Weights 270 Mean 40.0107407 Sum Observations 10802.9 Std Deviation 5.72993147 Variance 32.8321147 Skewness 0.48840063 Kurtosis 1.92109098 Uncorrected SS 441063.87 Corrected SS 8831.83885 Coeff Variation 14.3209832 Std Error Mean 0.34871252 Basic Statistical Measures Location Variability Mean 40.01074 Std Deviation 5.72993 Median 40. 10000 Variance 32.83211 Mode 40.00000 Range 39.40000 Interquartile Range 6. 10000 Tests for Location: Mu0=26 Test Statistic p Value Student's t t 40. 17848 Pr > It <.0001 sign m pr>= [MI <.0001 signed rank s pr>= |S| <.0001 quantiles level quantile max extreme observations lowest highest value obs q3 median q1 min>