12:39 PM Wed Dec 7 . 1 83% Course Test . . . 1 of 2 TEST 3 1) A random sample of n = 12 individuals is selected from a population with M = 70 and a treatment is administered to each individual in the sample. After treatment the sample mean is found to be M = 74.5 with S = 5.20 Based on the sample data, does the treatment have a significant effect.? Use a two tailed test with a = 0.05 steps a) State the Null and the Alternate Hypotheses b) Calculate the estimated standard error of the mean c) Identify the critical t value ( use a = 0.05 ) and critical region d) Compute the t statistics