Question

Questions of Sorp 4 of 6 01:02:53 Using traditional methods it takes 103 hours to receive an advanced driving license new training technique in Computer Aided instruction ICAs been proposed Aresearcher used the technique on. SO students and observed that they had a mean of 101 hours Assume the s tation variance is known to be 36. Is there evidence at the 0.02 level that the th e performs rently than the tradition method Step of the value of the test statistic. Round your answer to four decimal Answer P oint DFGHJ option

Answer 1

naso (semplesize) let X denote us of hours taken to receive license non let a besemple mean of x. for So students let r2 cenote population verience of x = 36. Here we want to test - Ho uz 103 vls ni: " & 103. where is population meen of x.) Test statistic :- 2 = X-1 No. 1) by lentia Limit Theoum. =) = 101- 103 (36/50 O Prelue = P(Z<-2-35) x 2 10.187734 = P1 272.35) x 2 = 0.09 386782 f by symmely =Pizza) OP(22-a) ~ [043 +7 0-1877 level of significance = x= 0.02. Suce per clue = 0.1877 is > Ll=0.22) - we fail to reject Ho at X=0.02 level of sgrifionce I conclude that u=163 hours to there is not meets This means there is not enough evidence to conclude that CAI perfams differently than troditinal methode using the semple data at d=0.02 level of significance Ars fail to reject Null hypothesis.