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

Essay

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 for the adult population of one town, the mean annual salary is given by $\mu = \$ 30,000$ . Sample data are summarized as $n = 17 , \bar { x }$ and $s =$ $\$ 14,200$ . Use a significance level of $\alpha = 0.05$ .