A Student Asked a Statistics Professor If Grades Were Marked

question 123

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 your decision if α = 0.05?

• A) The letter grades are evenly distributed.
• B) The letter grades are not evenly distributed.
• C) The letter grades are normally distributed.
• D) The letter grades are not normally distributed.
• E) The letter grades are unfairly distributed.

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Definitions:

Boycott

A form of protest in which individuals or groups refrain from using, buying, or dealing with products or services of a company as an act of criticism or demand for change.

Mackay Doctrine

A principle from U.S. labor law allowing employers to permanently replace striking workers under certain conditions, established in the case NLRB v. Mackay Radio & Telegraph Co.

Perfect Information

A scenario in economics where all parties have access to all relevant information about a transaction, market, or event before it occurs.

Strikes

Work stoppages initiated by employees as a form of protest against terms of employment or to demand better wages and conditions.