Question

QUESTION 30 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods I"m San Houston State University are presented below. The weil Section 3: (69,92, 66,81, 76, 55, 70, 83, 68, 57, 80, 66, 69, 55, 88, 70, 70, 70,56,50) Section 6: (10,73,88,58, 89,69.63, 76, 87, 82, 97,76,66,95, 84, 88, 82, 81,68, 89) Section 9 (30,85, 76, 73,92, 65, 90, 71, 77, 78, 86, 91, 87, 78, 88, 77, 73,97,86,99) (9) An instructor of Statistical Methods I believes that the mean final score of section is higher than the mean false of section Perform apothesis higher than the mean final score in section 3. Give the p-value of the test

Answer 1

Ang let u, and l be the mean final score for section 6 and section 3 respectively. Now, Ho! Mi=42 H: M, 742 U right tailed) Under Ho, the test statistic es: ł, - X2 t = tn eh2-2 she ha where, [(*;,)7 (21-30) s²= n, en ₂-2

Thus, there the is not sufficient conclude that section 6 is higher her than the score in section 3. evidence to mean final score in mean final