Suppose the Ages of Students in Statistics 101 Follow a Right

question 16

Multiple Choice

Suppose the ages of students in Statistics 101 follow a right skewed distribution with a mean of 23 years and a standard deviation of 3 years. If we randomly sampled 100 students, which of the following statements about the sampling distribution of the sample mean age is incorrect?

• A) The mean of the sampling distribution is equal to 23 years.
• B) The standard deviation of the sampling distribution is equal to 3 years.
• C) The shape of the sampling distribution is approximately normal.
• D) The standard error of the sampling distribution is equal to 0.3 years.

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Definitions:

Bonuses

Additional financial compensation awarded to employees as a reward for their performance.

Principle of Exceptions

A management principle focusing attention and resources on areas that deviate significantly from standards or expectations.

Standard Costs

Predetermined costs for materials, labor, and overhead used as a benchmark for evaluating actual production costs.

Factory Overhead Cost Variance

The difference between the actual factory overhead costs incurred and the expected (or budgeted) overhead costs based on standard cost accounting.