Suppose you are testing the following hypotheses: H0: = 3200 Ha: 3200 Sample size

Question:

Suppose you are testing the following hypotheses: H0: μ = 3200 Ha: μ ≠ 3200 Sample size is 9. The sample mean is 3260 and the sample standard deviation is 120. The significance level is .10. 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. 2T to produce the appropriate p value.)
c. Based on your work in parts a and b, should you reject the null hypothesis? Explain.