If other factors are held constant, increasing the sample size for a chi-square test for ...

If other factors are held constant, increasing the sample size for a chi-square test for independence will increase the likelihood of rejecting the null hypothesis.
 
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Question 2

For a one-tailed test with  = .05 and a sample of n = 9, the critical value for the t statistic is t = 1.860.
 
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Question 3

A chi-square test should not be used if any expected frequency is less than five.
 
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Question 4

For a two-tailed test with  = .05 and a sample of n = 16, the boundaries for the critical region are t = 2.120.
 
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