A random sample of n= 25 individuals is selected from a population with mu space equals 20 space and a treatment administered to each individual in the sample. After treatment the sample mean is found to be M=22.2 with SS= 384. (a) How much difference is there between the mean for the treated sample and the mean for the original population? (note: In a hypothesis test this value forms the numerator of the t statistic) (b)If there is no treatment effect, how much difference is expected between the sample mean and its population mean? That is to find the standard error for M. (c) Based on the sample data, does the treatment have a significant effect? Use a two tailed test withalpha space equals space 0.05