3. Administrators at ACME High School wanted to know which of four instructional methods for mathematics is best. The four methods were lecture only (L), lectures with remedial textbook assistance (LR), lectures with computer assistance (LC), and computer instruction only (C). At the end of five weeks, the students were given a common exam. The scores on the exams are in the file examscores.csv (a) Which instructional method results in the highest median score gain? (b) Which method results in the highest mean score gain? (c) Which method has the smallest coefficient of variation? (d) Which method has the largest sample standard deviation? (e) Which test (Hartley's F-max, Bartlett's, Levene's) is most appropriate for checking for equality of variance? (f) Run the test you suggested in part (e). Be sure to state the null and alternative hypotheses, test statistics, p-value, and conclusion. Also, check the assumptions with graphs, Anderson Darling, etc.

3. Administrators at ACME High School wanted to know which of four instructional methods for mathematics is best. The four methods were lecture only (L), lectures with remedial textbook assistance (LR), lectures with computer assistance (LC), and computer instruction only (C). At the end of five weeks, the students were given a common exam. The scores on the exams are in the file examscores.csv (a) Which instructional method results in the highest median score gain? (b) Which method results in the highest mean score gain? (c) Which method has the smallest coefficient of variation? (d) Which method has the largest sample standard deviation? (e) Which test (Hartley's F-max, Bartlett's, Levene's) is most appropriate for checking for equality of variance? (f) Run the test you suggested in part (e). Be sure to state the null and alternative hypotheses, test statistics, p-value, and conclusion. Also, check the assumptions with graphs, Anderson Darling, etc.

Name: examscores.csv data below'Student', 'L', 'L/R', 'L/C', 'C'1,7,5,9,172,
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: examscores.csv data below'Student', 'L', 'L/R', 'L/C', 'C'1,7,5,9,172,2,2,12,193,2,3,2,264,6,11,17,15,16,16,12,476,11,11,20,277,9,3,20,-88,0,,31,109,4,,21,2010,2,,, 3. Administrators at ACME High School wanted to know which of fourinstructional metho

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 28EQ

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