Question: Chapter 8 Confidence Intervals (Mean) Progress saved Done Score: 8.2/14 9/14 answered Question 4 0/1 pt Assume that a sample is used to estimate a

Chapter 8 Confidence Intervals (Mean) Progress saved Done Score: 8.2/14 9/14 answered Question 4 0/1 pt Assume that a sample is used to estimate a population mean /. Find the 90% confidence interval for a sample of size 42 with a mean of 75.4 and a standard deviation of 17.8. Enter your answer as an open- interval (i.e., parentheses) accurate to 3 decimal places. 90% C.L. = Answer should be obtained without any preliminary rounding. Submit

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