Homework Help: business statistics

Posted by Marianne on Wednesday, August 12, 2009 at 9:52pm.

In testing the independence of two variables described in a contingency table, determine the critical value of chi-square if the test is to be conducted at the
a. á= 0.025 level and d f = 5
b. á = 0.05 level and d f = 8
c. á = 0.01 level and d f = 6
d. á = 0.10 level and d f = 4

business statistics - MathMate, Wednesday, August 12, 2009 at 10:51pm
It is the same distribution table as the other Χ² values.

For example, at α=0.025 and df=5,
look up cumulative probability of 0.975 to get 12.8.
At α=0.1 and df=6, for cumulative probability of 0.90, Χ² = 10.7.

If you do not have a Χ² table, try the calculator below:
http://stattrek.com/Tables/ChiSquare.aspx
but make sure you have access to one for your exams. Check with your teacher.

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