4. Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations using the t statistic You are planning to evaluate the mean of a single continuous variable from a study with a sample of n= 25 using the t statistic. What are the degrees of freedom for the sample? O 26 O 25 O 24 O 23 With another study, where you also plan on evaluating a mean using the t statistic, you have a sample of n = 56 that has an SS of 275. What is the variance for the sample? O 5 O 75,625 O 16.58 O 2.24 For a sample of n = 36 that has a sample variance of 1,296, what is the estimated standard error for the sample? O 37 O 36 O 6 O 6.09 O O O O

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