CILower = (SJ(1 4?: )(tcrit) + (if X2) Consider the research design described above. The results from the recylcing study are as follows: Treatment group mean: 4.60 Control group mean: 2.90 Sample size: 50 Standard error of the differences between the means: 0.65 Computer the lower bound of the confidence interval. (See the formula.) You may use this website to obtain the critical value for the t-test. Make sure to use .05 for the two-tailed probability and use the "two-tailed T value" in your calculation. Or you can use a standard table of critical t-values. And make sure to use the treatment group mean as "Mean 1" in the formula. Your Answer: Answer D View hint for Question 10 Question 11 (3 points) Consider your response to the previous question. Should you reject the null hypothesis? Why