1.Suppose you know 20-29 year old men have an average weight of 166 pounds, a standard deviation of 22 pounds, and their weights are positively skewed not normally distributed.Now actually use the techniques described in chapter 8 to determine the probability of randomly selecting 49 (N=49) 20-29 year old men with a mean weight of 163 pounds or less from the population of 20-29 year old men.

2.If the population mean for children standing on their own is 13.20 months with a standard deviation of 2, what is the probability of randomly selecting a sample of 38 children (N=38) who stood on their own by the average age of 13.00 months or earlier?

3.Here's another problem about the age that children first stand on their own without support, remember that the population mean is 13.20 months with a standard deviation of 2. What is the probability of randomly selecting a sample of 25 children who stood on their own by the average age of 12.2 months or earlier?What is the interpretation about this probability.