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Introductory Statistics

Prem S. Mann

Chapter 11

Chi-Square Tests - all with Video Answers

Educators


Section 1

The Chi-Square Distribution

00:36

Problem 1

Describe the chi-square distribution. What is the parameter (parameters) of such a distribution?

Maxime Rossetti
Maxime Rossetti
Numerade Educator
00:32

Problem 2

Find the value of $\chi^{2}$ for 12 degrees of freedom and an area of $.025$ in the right tail of the chi-square distribution curve.

Abdullah Alomair
Abdullah Alomair
Numerade Educator
01:17

Problem 3

Find the value of $\chi^{2}$ for 28 degrees of freedom and an area of $.05$ in the right tail of the chi-square distribution curve.

Abdullah Alomair
Abdullah Alomair
Numerade Educator
00:32

Problem 4

Determine the value of $\chi^{2}$ for 14 degrees of freedom and an area of $.10$ in the left tail of the chisquare distribution curve.

Abdullah Alomair
Abdullah Alomair
Numerade Educator
00:32

Problem 5

Determine the value of $\chi^{2}$ for 23 degrees of freedom and an area of $.990$ in the left tail of the chisquare distribution curve.

Abdullah Alomair
Abdullah Alomair
Numerade Educator
01:17

Problem 6

Find the value of $\chi^{2}$ for 4 degrees of freedom and
a. 005 area in the right tail of the chi-square distribution curve
b. 05 area in the left tail of the chi-square distribution curve

Abdullah Alomair
Abdullah Alomair
Numerade Educator
01:17

Problem 7

Determine the value of $\chi^{2}$ for 13 degrees of freedom and
a. 025 area in the left tail of the chi-square distribution curve
b. $.995$ area in the right tail of the chi-square distribution curve

Abdullah Alomair
Abdullah Alomair
Numerade Educator