A student asked a statistics professor if grades were marked "on the curve." The professor decided to give the student a project to determine if last year's statistics grades were normally distributed. The professor told the student that last year's mean mark was 70 with a standard deviation of 10 and to use the following results. What is the critical value of chi-square at the 0.05 level?
A) 12.833
B) 11.070
C) 12.592
D) 14.449
E) 19.675

Question

A student asked a statistics professor if grades were marked "on the curve." The professor decided to give the student a project to determine if last year's statistics grades were normally distributed. The professor told the student that last year's mean mark was 70 with a standard deviation of 10 and to use the following results.  What is the critical value of chi-square at the 0.05 level?
A) 12.833 
B) 11.070 
C) 12.592 
D) 14.449 
E) 19.675

Quizplus · Accepted Answer

The Answer of A student asked a statistics professor if grades were marked "on the curve." The professor decided to give the student a project to determine if last year's statistics grades were normally distributed. The professor told the student that last year's mean mark was 70 with a standard deviation of 10 and to use the following results.  What is the critical value of chi-square at the 0.05 level?
A) 12.833 
B) 11.070 
C) 12.592 
D) 14.449 
E) 19.675

A Student Asked a Statistics Professor If Grades Were Marked