Solve please

A professor was teaching two large chemistry classes at a university. A sample of 30 students was taken in the first chemistry class. The sample average was 70 percent with a sample standard deviation of 10. A sample of 50 students was taken in the second chemistry class. The sample average was 75 percent with a standard deviation of 5. Test a claim by a class member that the average of the first class is less than the average for the second class. Take alpha to be 0.05. Part 1: Identify the Null and Alternative Hypotheses from the list below (use capital letters with no periods): A A. Ho : MClass 1 = M.Class 2 Ha : PlClass 1 HClass 2 C. Ho : MClass 1 = /Class 2 Ha : HClass 1 # MClass 2 Part 2: Identify the critical test statistic for alpha of 0.05 (round to three decimal places as needed): type your answer... Part 3: Identify the test statistic (round to three decimal places as needed): -2.554 Part 4: Identify the p-value (round to three decimal places as needed): type your answer... Part 5: Identify what action to take (use capital letters with no periods): A A. Reject the null hypothesis in favor of the alternative. B. Fail to reject the null hypothesis. Part 6: Why did you take the action you did in Part 6 (use capital letters with no periods): B A. p > a B. p