STATISTICAL TECHNIQUES AND TOOLS
T DISTRIBUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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17
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18
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19
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20
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Detailed explanation-1: -Degrees of freedom for a single sample In our current example, we should use the t distribution with df = 19-1 = 18 degrees of freedom.
Detailed explanation-2: -Typically, the degrees of freedom equals your sample size minus the number of parameters you need to calculate during an analysis. It is usually a positive whole number. Degrees of freedom is a combination of how much data you have and how many parameters you need to estimate.
Detailed explanation-3: -Degree of freedom (df) = the sample size-1. This means that the number of samples you have in your study subtracted by one will equal the degree of freedom. So if you have a sample size of 25, subtract one from this value to get the degree of freedom. In this case, it would be 24.