Which of the Following Statements Is True About the T-Test

question 8

Multiple Choice

Which of the following statements is True about the t-test?

• A) The t-test provides a mathematical way of determining if the difference between two sample means has occurred by chance.
• B) The larger the value of the standard error of the difference between two means, the larger the value of t.
• C) The t-test cannot be used when the population standard deviation is unknown.
• D) In order to conduct a t-test, the sample size should be larger than 30.
• E) The t-test cannot be used for interval or ratio data.

---

Definitions:

Lifetime Learning Credit

A tax credit available to individuals who pay higher education costs, aimed at promoting lifelong learning.

Qualifying Expenses

Specific expenses that meet IRS criteria for tax deductions or credits, such as educational or medical expenses.

Community College

A type of educational institution that provides workforce education and college transfer academic programs, typically offering two-year degrees.

AGI Limitations

Restrictions based on Adjusted Gross Income, defining how much of certain deductions and credits individuals can claim on their taxes.