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

question 6

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.