The average of grade point averages (GPAS) of college courses in a specific major is a measure of difficulty of the major. An educator wishes to conduct a study to find out whether the difficulty levels of different majors are the same. For such a study, a random sample of major grade point averages (GPA) of 11 graduating seniors at a large university is selected for each of the four majors mathematics, English, education, and biology. The data are given in the table. Test, at the 5% level of significance, whether the data contain sufficient evidence to conclude that there are differences among the average major GPAS of these four majors. Major sample size Sample mean Sample Variance Mathematics 11 2.90 0.188 English 11 3.34 0.148 Education 11 3.36 0.229 Biology 11 3.02 0.157 =MST =MSE =The critical F =F

The average of grade point averages (GPAS) of college courses in a specific major is a measure of difficulty of the major. An educator wishes to conduct a study to find out whether the difficulty levels of different majors are the same. For such a study, a random sample of major grade point averages (GPA) of 11 graduating seniors at a large university is selected for each of the four majors mathematics, English, education, and biology. The data are given in the table. Test, at the 5% level of significance, whether the data contain sufficient evidence to conclude that there are differences among the average major GPAS of these four majors. Major sample size Sample mean Sample Variance Mathematics 11 2.90 0.188 English 11 3.34 0.148 Education 11 3.36 0.229 Biology 11 3.02 0.157 =MST =MSE =The critical F =F

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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