Statistics: The t-test

Objectives

• Students will discuss scenarios when best to use a t-test.
• Students will practice writing their null and alternative hypotheses.
• Students will decide between one and two tailed tests, finding the t-value and p-value with the handheld, and stating their conclusions.

Vocabulary

•  t-test   
• normally distributed       
• variance
• hypotheses     
• pooled data 
• p-value

About the Lesson

Students will be given several examples of data. They will do the following for each

example:

• Write down the null and alternative hypotheses.
• State whether the example is a one-tailed or a two-tailed test.
• Using the handheld, students will find the t-value and   p-value for a 2 sample t-test at the 5% significance level.
• Write down the conclusion to the test.