The Average Number of Units Earned Per Semester by College

question 91

Multiple Choice

The average number of units earned per semester by college students is suspected to be rising. A researcher at Calendula College wishes to estimate the number of units earned by students during the spring semester at Calendula. To do so, he randomly selects 100 student transcripts and records the number of units each student earned in the spring term. Identify the variable of interest to the researcher.

• A) the number of students enrolled at Calendula College during the spring term
• B) the average indebtedness of Calendula College students enrolled in the spring
• C) the age of Calendula College students enrolled in the spring
• D) the number of units earned by Calendula College students during the spring term

---

Definitions:

Population Proportion

The ratio of members in a subset of the population who have a particular attribute to the total number of members in the population.

Point Estimate

A solitary figure or metric that represents the most probable estimate or optimal prediction for a population parameter, derived from sample data.

Margin of Error

The maximum expected difference between the true population parameter and a sample estimate of that parameter.

Mean

The average of a set of numbers, calculated by adding all the values together and dividing by the number of values.