4. Computing effect size a. In Problem 1, P = 0.56 of women who experienced severe morning sickness gave birth to girls, while only P = 0.51 of births to the general population produced girls. Compute the effect size (difference between P and P.) for this result. (1) Absolute effect size [= P - P] (2) Relative effect size [= 100 ( P - P_) /Po ], in %. b. In Problem 3, P = 0.25 of infants in the AZT treatment group with n = 300 mothers tested positive for HIV, compared to P = 0.30 who become HIV infected if untreated. Compute the absolute and relative effect size for this result. (1) Absolute effect size: (2) Relative effect size: C. The two studies described in Problems 1 and 3 had similar absolute effect sizes. Are their results equally "interesting" or "important"? Explain your answer in terms of the difference between "statistically significant" vs. "practically important" effects