Assume that a simple random sample has been selected from anormally distributed

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Assume that a simple random sample has been selected from anormally distributed population. Find the test statistic, p-value,critical value(s), and state the final conclusion.
Test the claim that the mean age of the skating population in onecity is less than 26 years. Sample data are summarized as n=25, xbar= 24.4 years, and s=9.2 years. Use significance level of0.05 please show steps Assume that a simple random sample has been selected from anormally distributed population. Find the test statistic, p-value,critical value(s), and state the final conclusion.
Test the claim that the mean age of the skating population in onecity is less than 26 years. Sample data are summarized as n=25, xbar= 24.4 years, and s=9.2 years. Use significance level of0.05 please show steps

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and how do I get the critical values?

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