Medicare Hospital Insurance The average yearly Medicare

Last updated: 7/9/2022

Medicare Hospital Insurance The average yearly Medicare Hospital Insurance benefit per person was $4064 in a recent year. Suppose the benefits are normally distributed with a standard deviation of $460. Round the final answers to at least four decimal places and intermediate z-value calculations to two decimal places. Part 1 of 2 Find the probability that the mean benefit for a random sample of 22 patients is less than $3940. P(X<3940) = Part 2 of 2 Find the probability that the mean benefit for a random sample of 22 patients is more than $4230. P(X> 4230) =