The previous exercise is very important to your understanding of tests of significance. If you don't use the applet, you should dothe calculations by hand. (Your results may differ slightly from those obtained bythe applet due to rounding error.) Find the P -value in each of the followinghypothetical situations:
(a) We measure the acidity of rainfall on 5 days. The average pH is x = 4 . 8.
(b) Use a larger sample of 15 days. The average pH is x = 4 . 8.
(c) Finally, measure acidity for a sample of 40 days. The average pH is x = 4 . 8.