A teacher wants to test her expectations for grade distributions with the actual values. She figures that final grades in the English department should be distributed as: A, 35 % ; B, 25 % ; c, 15 % ; D, 20 % ; F, 5 % . At the end of a randomly selected semester, the following grades for 80 students were recorded in the table below. The teacher completed the calculations for the expected values and R of the A and B students. Grade Frequency Expected Value R2 24 28 0.57 22 20 0.2 C 16 D 14 F 4 Complete the last 3 rows of the table by calculating the expected values and R for the C, D, and F students. Use the table values to find the chi-square test statistic Y used to determine if the grade distribution for the department is different than expected. = 2.92 X = 2.1 = 2.35 = 0.77 0.57

A teacher wants to test her expectations for grade distributions with the actual values. She figures that final grades in the English department should be distributed as: A, 35 % ; B, 25 % ; c, 15 % ; D, 20 % ; F, 5 % . At the end of a randomly selected semester, the following grades for 80 students were recorded in the table below. The teacher completed the calculations for the expected values and R of the A and B students. Grade Frequency Expected Value R2 24 28 0.57 22 20 0.2 C 16 D 14 F 4 Complete the last 3 rows of the table by calculating the expected values and R for the C, D, and F students. Use the table values to find the chi-square test statistic Y used to determine if the grade distribution for the department is different than expected. = 2.92 X = 2.1 = 2.35 = 0.77 0.57

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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