A school psychologist designed a study to investigate the effectiveness of three study programs. A sample of 30 students were randomly selected and assigned to one of the three programs. After 3 months, the researcher assessed their academic performance and reported the scores that have been increased over the 3 months period. Based on the data below, do we have the evidence that the three programs produced different results? Conduct a hypothesis test at a significance level of .05 by answering the following questions. Program A: 12, 10, 15, 9, 8, 12, 6, 11, 7, 13 Program B: 6, 4, 8, 7, 6, 5, 12, 8, 6, 3 Program C: 7, 9, 8, 3, 6, 10, 12, 6, 7, 4

A school psychologist designed a study to investigate the effectiveness of three study programs. A sample of 30 students were randomly selected and assigned to one of the three programs. After 3 months, the researcher assessed their academic performance and reported the scores that have been increased over the 3 months period. Based on the data below, do we have the evidence that the three programs produced different results? Conduct a hypothesis test at a significance level of .05 by answering the following questions. Program A: 12, 10, 15, 9, 8, 12, 6, 11, 7, 13 Program B: 6, 4, 8, 7, 6, 5, 12, 8, 6, 3 Program C: 7, 9, 8, 3, 6, 10, 12, 6, 7, 4

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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