1. Given: A normally distributed population with 150 and 24. If samples of size 36 are drawn at random, what is the probability of obtaining
(a) a sample mean of 154 or or higher?
(b) a sample mean that differs from 150 by 6 points or more?
2. Given: A normally distributed population with 120 and 10. If samples of size 25 are drawn at random, what is the probability of obtaining
(a) a sample mean of 118.25 or lower?
(b) a mean that differs from 120 by 2 points or more? 8.