A Student Asked a Statistics Professor If Grades Were Marked

question 63

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. Using the data from this Mega stat printout, you determine:

• A) the letter grades are evenly distributed when tested at the 0.05 level of significance.
• B) the letter grades are not normally distributed when tested at the 0.01 level of significance.
• C) the letter grades are normally distributed when tested at the 0.05 level of significance.
• D) the letter grades are not normally distributed when tested at the 0.05 level of significance.
• E) the letter grades are not normally distributed when tested at either the 0.01 or 0.05 level of significance.

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