T Distribution Critical Values

This video tutorial explains how to use the t distribution table to find the t critical value. It covers examples of left-tailed, right-tailed, and two-tailed distributions, detailing the steps to select the appropriate row and column based on the significance level and degrees of freedom.

What is the primary purpose of using the t distribution table?

• To determine the standard deviation

• To compute the median

• To find the t critical value

• To calculate the mean of a dataset

In a left-tailed distribution example, what is the significance level used?

• 0.20

• 0.01

• 0.05

• 0.10

How many degrees of freedom are considered in the left-tailed example?

• 34

• 14

• 10

• 24

What is the significance level for the left-tailed example?

• 0.20

• 0.01

• 0.10

• 0.05

What is the first step in finding the t critical value for a left-tailed distribution?

• Select the row for one tail

• Select the row for the degrees of freedom

• Select the column for the significance level

• Select the row for two tails

What is the t critical value for the left-tailed example?

• 2.345

• -2.345

• 1.345

• -1.345

What is the t critical value for the left-tailed example?

• 2.345

• -2.345

• 1.345

• -1.345

In the right-tailed distribution example, what is the significance level?

• 0.20

• 0.01

• 0.05

• 0.10

How many degrees of freedom are used in the right-tailed example?

• 14

• 24

• 44

• 34

What is the significance level for the right-tailed example?

• 0.01

• 0.10

• 0.20

• 0.05