Bob selects independent random samples from two populations and obtain the values

Bob selects independent random samples from two populations and obtains the values 351 = DEED and 352 = anon. He oonstmcts the 95% condence interval for 331 pg and gets: 0.2m :l: LQEWJME} = .2ll :I: 0.594. Note that 0.048 is called the estimated standard error of 13-1 353 {the ESE of the estimate}. Tom wants to estimate the mean of the success rates: P1 + P2 2 . [a] Calculate Tom's point estimate. {b} Given that the estimated stande er- ror of {1511 + parlf is (1.11124. calculate the 95% condence interval estimate of {1:11 +pg)f2. Hint: The answer has our usual form: Pt. 0st. :I: 1.96 x ESE of the estimate