D Question 9 18 pts Tests in your professors Statistics classes have scores with standard deviation equal to 14.1. One of the last classes had 27 test scores with a standard deviation of 9.3. Test the claim that this class has less variation that other past classes. a) Fill in the blanks with the upper case letter that describes the null and alternative hypothesis in symbolic form: Ho HE: Ao = 14.1 Boy 14.1 Co 14.1 b) Which hypothesis test is needed? (Type your answer as an uppercase letter that matches the options below) A two-tailed test B left-tailed test C right-tailed test c) Chi Squared: X2 (Type your answer to 3 decimals) Work/Technique Submission: 2 pts will be assessed d) P-value= (Type your answer to 4 decimals) Work/Technique Submission: 5 pts will be assessed