Find the area under the standard normal distribution curve to the left of z= -1.22 and to the right of z=0.33. Use The Standard Normal Distribution Table and enter the answer to 4 decimal places. The total area isFind the z value that corresponds to the given area in the figure below. Use a graphing calculator and round the answer to four decimal places. 0.0259 0 ZMedicare Hospital Insurance The average yearly Medicare Hospital Insurance benet per person was $4064 in a recent year. Suppose the benets are normally distributed with a standard deviation of $460. Assume that the sample is taken From a large population and the correction factor can be ignored. Use a TI83 PluszI84 Plus calculator. Round your answer to at least four decimal places. Find the probability that the mean benefit for a random sample of 20 patients is more than $42i}. P(E}42m)=m ' x 8 Find the probability that the mean benefit for a random sample of 20 patients is less than $3900. P (X