Question 1 The students in 3 sections of a statistics class were each taught by 3 different teaching methods. At the end of the course a common exam was administered. A random sample of 6 students was taken from each section. Their marks on the exam (out of 100) are displayed in the table below. Section 1 3 72 56 56 68 71 78 81 58 82 85 67 58 68 61 91 71 55 66 Is there sufficient evidence to conclude at the 5 percent level that there exist significant differences in the average grades for the 3 teaching methods? Carefully discuss.

Question 1 The students in 3 sections of a statistics class were each taught by 3 different teaching methods. At the end of the course a common exam was administered. A random sample of 6 students was taken from each section. Their marks on the exam (out of 100) are displayed in the table below. Section 1 3 72 56 56 68 71 78 81 58 82 85 67 58 68 61 91 71 55 66 Is there sufficient evidence to conclude at the 5 percent level that there exist significant differences in the average grades for the 3 teaching methods? Carefully discuss.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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