Question 14.72

14.72 The effect of increased sample size.

Set the standard deviation for the One-Way ANOVA applet at a middle value and drag the black dots so that the means are roughly 5.00, 4.50, and 5.25.

  1. What are the statistic, its degrees of freedom, and the -value?
  2. Slide the sample size bar to the right so . Also drag the black dots back to the values of 5.00, 4.50, and 5.25. What are the statistic, its degrees of freedom and the -value?
  3. Explain why the statistic and -value change in this way as increases.