Assignment 6: Chi square Test (10 points) 1. You are planning on taking an advanced statistics course and wondering what grades students tend to receive in that course. You hypothesize that grades are not evenly distributed in class; that is, there will be more As and Bs than other grades. The null hypothesis is that grades are evenly distributed; that is, there is no significant difference in the number of students receiving an A, a B, a C, a D, or an F in the class. Below is the distribution of the grades in the class. Round intermediate calculations and your answer to 2 decimal places. Number of x' = (0-E) Grade E Students A B 11 C 3 D A 3 Total 30 1. Compute the test statistic. Chi square = 2. Using a .05 significance level, can you reject the null hypothesis? EXPLAIN WHY. "Be sure to write the critical value. Use the Critical Value Table B.5, which can be found in the "DATA" section. 3. Interpret your answer for Q2