Question

Suppose you are testing the following hypotheses: H0: μ < 1500 Ha: μ > 1500 Sample size is 25. The sample mean is 1545 and the sample standard deviation is 75. The significance level is .05. Assume that the values in the population are normally distributed.
a. Compute the sample test statistic, t stat.
b. With the help of a statistical calculator or a statistical software package, determine the appropriate p value here and use it to conduct the test. (If you are using Excel, use the statistical function T. DIST. RT to produce the appropriate p value.)
c. Based on your work in parts a and b, should you reject the null hypothesis? Explain.


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  • CreatedJuly 16, 2015
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