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.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.6: Additional Trigonometric Graphs
Problem 77E
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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.

Expert Solution
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 probability.
  • In probability enter the value 025.
  • Click OK.

Output using MINITAB software is given below:

Statistics homework question answer, step 1, image 1
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