Subtract 20 from each item in the given sample, and compute the mean and standard deviation of the new sample. 42, 38, 46, 27, 48, 38, 46 . . The mean of the new sample is 20.71 . (Simplify your answer. Type an integer or decimal rounded to the nearest hundredth as needed.) The standard deviation of the new sample is (Simplify your answer. Type an integer or decimal rounded to the nearest hundredth as needed.)