In hypothesis testing the statistical conclusion is either to reject or not to reject the null hypothesis based on the sample data. which of the following statements is true? a. the conclusion is always free from error if the correct procedure is followed b. the conclusion will never reject a true null hypothesis c. the conclusion will always reject a false null hypothesis. d. the conclusion is always subject to error because it is based on sample data. e. the conclusion can only be accepted if it is consistent with prevailing theory.