Course Hero G Grammarly My Drive - Google Drive > Next question Get a similar question You can retry this question below Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores: Grades 85.5 69 73.5 66.5 65 69 69 88 85.5 83.2 Test grades are believed to be normally distributed. Use a significance level of 5%. A. State the alternative hypothesis: HA: Ou 65 B. State the mean of the sample: 75.42 (Round to two decimal places.) C. State the standard error of the sample means: 7.5420 x o (Round to four decimal places.) D. State the test statistic: t = (Round to four decimal places.) E. State the p-value: (Round to four decimal places.) F. Decision: Do not reject the null hypothesis. Reject the null hypothesis. Question Help: Message instructor