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Assume That a Simple Random Sample Has Been Selected from a Normally

Question 96

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Assume that a simple random sample has been selected from a normally 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 prison population in one city is less than 26 years. Sample data are summarized as n=25,x=24.4\mathrm { n } = 25 , \overline { \mathrm { x } } = 24.4 years, and s=9.2\mathrm { s } = 9.2 years. Use a significance level of α=0.05\alpha = 0.05

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