Suppose that we want to estimate the population of beer drinkers who can discern by taste, the difference between 5% ABV (alcohol-content by volume) and 3.2% ABV beer. For each situation below, determine the size of sample we must take in order to be 95% confident that our estimate is off by no more than 10%. (a) A previous survey showed that 20% of beer drinkers could discern the difference. (b) We have no information from a previous survey.
Paper#11408 | Written in 18-Jul-2015Price : $25