Question: After conducting a calculation for sample size for a paired t test procedure, a researcher determines that he needs only 28 participants. Which of the

After conducting a calculation for sample size for a paired t test procedure, a researcher determines that he needs only 28 participants. Which of the following conclusions should be drawn following this calculation?

The researcher should pursue enrolling 28 patients in this study

The researcher should inflate his estimated sample size calculation to above 30 to compensate for the difference between the t and standard normal distributions.

The researcher should apply an adjustment factor of (df+3)(df+1)

The researcher should consider re-evaluating the measurements used in calculation before continuing to enroll

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