A non-engineer decides to strap 20 water rockets to their back and launch themselves into the air. In order to see whether they would have enough initial thrust, they test 15rockets, and the mean thrust was found to be 31.275pounds, with a standard deviation of 5.755 pounds. a. How much initial thrust do you expect to get from a typical rocket? Use 98percent confidence. b.The non-engineer wants 600 pounds of total initial thrust from the 20 rockets. What is the probability that his/her scheme will produce the minimum required thrust?