15, 16 and 17 please

Question 15 0/1 pt 9 10 2 99 8 Details On the distant planet Cowabunga , the weights of cows have a normal distribution with a mean of 563 pounds and a standard deviation of 58 pounds. The cow transport truck holds 10 cows and can hold a maximum weight of 5900. If 10 cows are randomly selected from the very large herd to go on the truck, what is the probability their total weight will be over the maximum allowed of 5900? (This is the same as asking what is the probability that their mean weight is over 590.) (Give answer correct to at least 4 decimal places.) P( > 590) = Submit Question Question 16 0/1 pt 9 10 99 0 Details A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 26.8 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 26.8 weeks and that the population standard deviation is 6.7 weeks. Suppose you would like to select a random sample of 58 unemployed individuals for a follow-up study. Find the probability that a single randomly selected value is between 27.9 and 28.8. P(27.9