To use Turkey's post hoc test for these data. dr George must calculate the harmonic mean of the sample sizes. What is the value of the harmonic mean ?What is the value of the range statistic (q) for Turkey's post hoc test for these data, assuming ?=.05What is the "honestly significant difference" for these data, assuming ?=.05?

Use this information for this activity. Dr. George was interested in whether the frequency of quizzes in a class effected students' performance. He compared 3 groups: the 'final only' group was a class section of 16 students who only were tested at the final exam; the 'midterm + final' group was a class section of 20 students who took a midterm and a final exam; the 'quizzes + midterm + final' group was a class section of 27 students who, in addition to the midterm and final, received quizzes every week of the term. Dr. George performed an ANOVA and rejected the null hypothesis of no differences in final exam score between the groups at a=.05. His data for the final exam score is summarized here: Summary Statistics 'final 'midterm + 'quizzes + midterm + only' final' final' M 75 77 82 n 16 20 27 SS 200 230 170