A Student Asked a Statistics Professor If Grades Were Marked

question 53

Multiple Choice

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

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