The Department of Education Would Like to Test the Hypothesis

question 140

Multiple Choice

The Department of Education would like to test the hypothesis that the average debt load of graduating students with a Bachelor's degree is equal to $17,000. A random sample of 34 students had an average debt load of $18,200. It is believed that the population standard deviation for student debt load is $4,200. The Department of Education would like to set α = 0.05. The test statistic for this hypothesis test would be ______.

• A)t x = 1.89
• B)z x = 2.23
• C)z x = 1.67
• D)t x = - 2.06

---

Definitions:

Independent Samples

Samples that are collected in such a way that the sample values of one group do not affect or influence the sample values of another group.

Matched Pairs

A study design where subjects are paired based on certain characteristics, and each pair differs by the factor being tested.

Test Statistic

A value calculated from sample data used to evaluate the validity of a hypothesis in statistical tests.

Degrees of Freedom

Refers to the count of values in the final calculation of a statistic that are free to vary.