A sample of n=16 individuals is selected from a population with u=30. After a treatment is administered to the individuals, the sample mean is found to be M=33. If the sample variance is s2=16, then conduct a hypothesis test to evaluate the significance of the treatment effect and calculate r2 to measure the size of the treatment effect. Use a two-tailed test with a=.05...1.What is the standard error sm? 2. What is the value of the t statistic? 3. What is the critical t value? 4. Would you reject or retain the null hypotheses?