Question: The population deviation 0' is not known, and the sample size is 25. If we wish to estimate the population mean pl with 99% condence,

The population deviation 0' is not known, and the sample size

The population deviation 0' is not known, and the sample size is 25. If we wish to estimate the population mean pl with 99% condence, what is the appropriate critical value t to use? Round to THREE DECIMAL PLACES. Example: If the critical value :2 = 9.123 , enter 9.123 as your answer. 2

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