Question

Asked Jan 27, 2020

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In Exercises, use Table VII to find the required χ2-values. Illustrate your work graphically.

For a χ2-curve with 19 degrees of freedom, find the χ2-value that has area

a. 0.025 to its right.

b. 0.95 to its right.

Step 1

**a).**

Chi-square curve has degrees of freedom is 19 and the area to the right is 0.025.

**Software procedure:**

Step by step procedure to obtain -graph using MINITAB software is given below:

- Choose
**Graph > Probability distribution plot**. - Click on
**view probability**. Click**OK**. - Under
**distribution,**select**Chi-Square**. - Enter the value
**19**in**degrees of freedom**. - Under
**shaded area**, click on ...

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