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For the following claim, find the null and alternative hypotheses, test statistic, critical value, and draw...
For the following claim, find the null and alternative hypotheses, test statistic, critical value, and draw a conclusion. Assume that a simple random sample has been selected from a normally distributed population. Answer parts a-d.
Claim: The mean IQ score of statistics professors is less than 125.
Sample data: n= 12, x= 123, s= 99. The significance level is a= 0.05.
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