h webwork.math.ttu.edu + T WeBWorK : spr23bai89522m2345s112: _Unit_... Bb https://learn-us-east-1-prod-fleet02-xythos.co... B https://learn-us-east-1-prod-fleet02-xythos.co... Bb Tables and Symbols - MATH 2345-112S Courses Homework Sets Unit 3 Homework Set Problem 12 User Settings Grades Problems Problem 1 x Problem 2 Problem 3 Problem 4 ... Problem 5 Problem 6 Problem 7 Problem 8 Problem 9 ... Problem 10... Problem 11 ... Problem 12 Problem 13... Problem 14 Problem 15 ... Unit 3 Homework Set: Problem 12 Previous Problem Problem List Next Problem (3 points) A statistics practitioner took a random sample of 53 observations from a population whose standard deviation is 27 and computed the sample mean to be 96. Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits. A. Estimate the population mean with 95% confidence. Confidence Interval = B. Estimate the population mean with 90% confidence. Confidence Interval = C. Estimate the population mean with 99% confidence. Confidence Interval = Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining.