The mean of a population is 73 and the standard deviation is 14. The shape of the population is unknown. Determine the probability of each of the following occurring from this population Appendix A Statistical Tables a. A random sample of size 33 yielding a sample mean of 77 or more b. A random sample of size 130 yielding a sample mean of between 70 and 76 c. A random sample of size 220 yielding a sample mean of less than 73.2 (Round all the values of z to 2 decimal places, e.g. 15.25 and final answers to 4 decimal places, es, 0.2513.) a. b. C