A Sample of Assistant Professors on the Business Faculty at the Largest

Multiple Choice

A sample of assistant professors on the business faculty at the largest college in Ontario revealed the mean annual income to be $62,000 with a standard deviation of $3,000. Using the Empirical Rule, what proportion of faculty earn more than $56,000 but less than $68,000?

A) At least 50%
B) Approximately 68%
C) At least 75%
D) Approximately 95%
E) Almost all