image 12.44 The effect of increased sample size. Set the pooled standard error 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, respectively.

  1. (a) What are the F statistic, its degrees of freedom, and the P-value?

  2. (b) Slide the sample size bar to the right so n = 80. Also drag the black dots back to the values of 5.00, 4.50, and 5.25, respectively. What are the F statistic, its degrees of freedom, and the P-value?

  3. (c) Explain why the F statistic and P-value change in this way as n increases.