4. Use values from the cumulative Poisson distribution with 4 = 2 as provided in Appendix III. From these values, construct a table for use with random numbers as the technique for generating random observations. Use the first 25 three-digit random numbers found in the right-hand three digits of the middle major column in Appendix IV to obtain 25 random observations of the variable.

a. What is the mean of these 25 observations?

b. By what percentage does this mean differ from the \ = 2 for the original distribution?