While reading a published research report, you encounter the following statements. For each, identify the N, the procedure performed and the outcome, the relationship, and the type of error possibly being made.
(a) “When we examined the perceptual skills data, the mean of 55 for the sample of adolescents differed significantly from the population mean of 70 for adults, t(45) = 3.76, p < .01.”
(b) “The correlation between personality type and emotionality, however, was not significantly different from zero, with r(25) = +.42,p > .05.”