Question
what is the null and alternate hypothesis?
QUESTION 3 Soores on a rational wxam assume a nomal striaufion with a populrson mean of 5t ard papuárian dandwrd devation of 10 points. A sanle of 38 mor with a meun scom of 48 points. Uaing a sgncarce level of 0.05, determine whether soores on the exam hove aduly decreed, sastialy Whar sten Oa. Mean less than 48 O b. Menn is groater than or equa to 52 Oc Meun does nat eqaal 48 od. Mean is less than of oqual to 52 d QUESTION 4 Scoes on a rational exam assume a nomal distribution with a pepulation mas of 5 and pepuation rtnard devietion ot 10 with a mean score of 48 points using a agnficance Imel of 0 ns, determine wterher scr son ne o non on li doresee,mately, what-not O a Mean is grewter than or equal 0 60 O b. Mean is less than 52 c. Mean does not equal 48 C Mean is grater than 52
Explanation / Answer
The null hypothesis is the mean is greater than or equal to 52.
The alternative hypothesis is:
The mean is less than 52.
