Your professor wants to determine if her students today are performing better in statistics than 10 years ago. End of semester grades from a random sample of students enrolled today and one of students enrolled 10 years ago have been obtained: Today 10 Years Ago 82 88 112.5 54 o2 45 36 n Refer to Exhibit GGC 2-2. The test statistic for the difference between the two population means is a) -47 b) -.65 c) -3 d) -1.5

Your professor wants to determine if her students today are performing better in statistics than 10 years ago. End of semester grades from a random sample of students enrolled today and one of students enrolled 10 years ago have been obtained: Today 10 Years Ago 82 88 112.5 54 o2 45 36 n Refer to Exhibit GGC 2-2. The test statistic for the difference between the two population means is a) -47 b) -.65 c) -3 d) -1.5

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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