To test Ho:u = 80 versus H1:u< 80, a random sample of size n = 25 is obtained from a population that is known to be normally distributed. a. If the sample mean is determined to be 76.9 and the sample standard deviation is 8.5, compute the test statistic. b. Suppose the researcher tests the hypothesis at the .01 level of significance. Will the researcher reject the null hypothesis?(support your conclusion)

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