8.41 If the inspection division of a county weights and measures department wants to estimate the mean amount of soft-drink ll in 2-]iter bottles to within i 0.0] liter with 95% condence and also assumes that the standard deviation is 0.05 liter, what sample size is needed? 8.36 If you want to be 99% condent of estimating the population proportion to within a sampling error of i 0.04, what sample size is needed