Solution for QID #21389: Business statistics students at Colonel Samuel College belie | StudyHelpMe

Business statistics students at Colonel Samuel College believe that the mean score on a first statistics test is at most 70. An instructor, intending to prove that the mean score is higher, randomly samples 9 statistics students and obtains the following scores: 69.2 73.5 65 73.5 69.2 83.2 75.6 73.5 75.6   Test grades are believed to be normally distributed.   Use a significance level of 1%. Select the appropriate alternative hypothesis, H   2.Calculate the mean of the sample:  3.Calculate the standard error of the sample means:  4.Use the formula to calculate the test statistic: t   5.Use the student t-table to find the critical value:  6.Decision: Fail to reject the null hypothesis. Reject the null hypothesis.