ABCOF 10. A to test her expectations for distributions with the She "igures that final grades in the English department should be distributed as: F, 5% D, 20% A, 35% B, 25% C, 15% recorded in the table below. The teacher completed the calculations for the expected values and R2 of the A and B students. At the end of a randomly selected semester, the following grades for 240 students were Grade Frequency Expected Value 84 0.19 08 62 0.07 09 40 D. 12 ldeic Complete the last 3 rows of the table by calculating the expected values and R2for the C, D, and F students. Use the table values to find the chi-square test statistic y2 used to determine if the grade distribution for the department is different than expected. A. x? = 0.26 B. x² = 0.78 C. x² = 0.97 D. x2 = 0.19 E. x2 = 0.70 nolniet Pas
ABCOF 10. A to test her expectations for distributions with the She "igures that final grades in the English department should be distributed as: F, 5% D, 20% A, 35% B, 25% C, 15% recorded in the table below. The teacher completed the calculations for the expected values and R2 of the A and B students. At the end of a randomly selected semester, the following grades for 240 students were Grade Frequency Expected Value 84 0.19 08 62 0.07 09 40 D. 12 ldeic Complete the last 3 rows of the table by calculating the expected values and R2for the C, D, and F students. Use the table values to find the chi-square test statistic y2 used to determine if the grade distribution for the department is different than expected. A. x? = 0.26 B. x² = 0.78 C. x² = 0.97 D. x2 = 0.19 E. x2 = 0.70 nolniet Pas
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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Introduction
Whether there is any relationship or association between categorical variables are calculated using the chi square test. It is calculated by taking squared difference between the observed and expected value then divide it by expected value. It is denoted as . The formula for chi square is defined as
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