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 23 O 24 With another study, where you also plan on evaluating a mean using the t statistic, you have a sample ofn = 16 that has an Ss of 120. What is the variance for the sample? O 2.83 O 10.95 O8 O 14,400 For a sample of n = 25 that has a sample variance of 400, what is the estimated standard error for the sample? 04 O 16 O 4.08 O 17

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