Assume that a sample is used to estimate a population mean . Find the 98% confidence interval for a sample of size 54 with a mean of 84.5 and a standard deviation of 21.6. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). 98% C.I.= Answer should be obtained without any preliminary rounding. However, the critical value may be d to 3 decimal places.

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