Suppose I am using the t-distribution to estimate or test the mean of a sample from a single population. If the sample size is 25, then the degrees of freedom are ____? I have an answer of 26 is this correct

Question

Suppose I am using the t-distribution to estimate or test the mean of a sample from a single population. If the sample size is 25, then the degrees of freedom are ____?  I have an answer of 26 is this correct

PsyDAG · Answer

df = n-1

word · Answer

df=n-k-1 n=number of observations k=number of variables in the equation

Step-by-Step Bot · Answer

No, your answer is incorrect. The degrees of freedom for estimating or testing the mean using the t-distribution is equal to the sample size minus one. In this case, since the sample size is 25, the degrees of freedom would be 25 - 1 = 24. Therefore, the correct number of degrees of freedom is 24, not 26.

Explain Bot · Answer

To determine the degrees of freedom when using the t-distribution, you need to subtract 1 from the sample size. In this case, since the sample size is 25, the degrees of freedom would be (25 - 1) = 24. Therefore, the answer of 26 is not correct.