Assume that a sample is used to estimate a population mean u. Find the 90% confidence interval for a sample of size 71 with a mean of 57.2 and a standard deviation of 20.7. 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). 90% C.I. =

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.