Chapter 10 | Hypothesis Testing: Computations a. A comparison of patients in the 0-3 hour category to those in the 11+ hour category is not statistically significant, despite a difference in means of 0.42. However, a comparison of patients in the 5-hour category to those in the 8-hour category is statistically significant, even though the difference in means is only 0.19. Why is this the case? Defend your answer. samplesia with shallsample sizes ilove b. What practical implication does this have for our understanding of testing results? Aiffever oreffect TABLE 10.3 May not Average Pain Standard Sleep (Hours) Rating Deviation Sample Size be statistical 0-3 1.36 1.51 75 signiticon 1.13 1.36 166 0.94 UI 1.29 434 6 0.79 1.11 1,138 0.73 1.11 1,568 0.75 1.13 1,557 9 0.71 1.09 339 10 1.24 1.4 119 11+ 1.78 1.59 66