METHODS OF DATA ANALYSIS
PARAMETRIC AND NON PARAMETRIC TESTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The degrees of freedom for the t test to test the hypothesis about paired sample are
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n
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n1 + n2
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n1+n2-2
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n-1
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Explanation:
Detailed explanation-1: -Answer and Explanation: The degrees of freedom for a paired test are calculated by the following formula. where n denotes the number of paired observations. Therefore, a paired t-test with n=12 pairs, the degrees of freedom is df=12−1=11 d f = 12 − 1 = 11 .
Detailed explanation-2: -The one-sample t-test is a statistical test that can be used to determine whether there is a significant difference between the sample mean and the population mean. The t-test statistic (T) follows a t-distribution with n – 1 degrees of freedom, where n is the number of observations in the sample.
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