a researcher has following data the mean difference= 9.44 the standard deviation associated with the mean difference score =8.82, estimated standard error of the mean difference score =1.54 and the critical value=2.19. The reseracher wants to calculate 95% confidence interval associated with repeated measure t-test. what is the lower and upper bound for the research confidence interval and what they represent? If you were conducted hull hypothesis test on the research data, would you reject or fail to reject the null hypothesis