Use the following information to construct the confidence intervals specified to estimate 90% confidence interval for x=60, =11, and n= 42. Question 2Answer a. Lower Confidence Limit (L.C.L) = 47.2 Upper Confidence Limit (U.C.L) = 52.8 b. Lower Confidence Limit (L.C.L) = 67.2 Upper Confidence Limit (U.C.L) = 69.8 c. Lower Confidence Limit (L.C.L) = 57.2 Upper Confidence Limit (U.C.L) = 62.8 d. Lower Confidence Limit (L.C.L) = 57.2 Upper Confidence Limit (U.C.L) = 72.8