#12) use x = 46000, E = 3500 for a 95% prediction interval #14) use x =80, E =3.76 for a 95% prediction interval #15) use x = 13, E =25.1 for a 99% prediction interval #17) use x = 7900 E = 777 for a 95% prediction interval **#Covid 19 problem, use x - 3200 E - 361 for a 95% prediction interval 1 /2 3