We want te nhat a tvosthes tet of the dan that the ponuation.mean tme it takes dnvers to react fulowing the application of brakes by the drver front of them is es than 22 seconds. fe, we choose a andom.samele of reaction tame meurenets. The samoke husamen of 23 seands and tandart deviaton of O.5 seconds. For ch of the fiiowing ampting scenanon, choose an approprte test statats for ur hypothesin test on the populaton mein. Then calute that statc. Round your anowrs to two decnal places (a) The ample has s 11, nd it trm a poputation with a dtribution about which we know very itie ORsundear which test statetic to use (D) The sample has soe 80, and it s trom unen-normally distributed populatin with a known standard devation of 0.50. or-0 Ounclear which test tatistic to use