(Choose 1 answer)
(See picture)
A. (i)
B. (ii)
C. (iv)
D. (iii)
How many tissues should the Kimberly Clark Corporation package of Kleenex contain? Researchers determined that 60 tissues is the mean number of tissues used during a cold. Suppose a random sample of 100 Kleenex users yielded the following data on the number of tissues used during a cold: \overline{X}=52 , S=22 Suppose the alternative you wanted to test was H_{1}:\mu<60 State the correct rejection region for a = 0.05.
Let t_{0.05:99}=1.6604; to.025;99 1.9842
(i)Reject Ho if t>1.6604
(ii)Reject Ho if t<-1.6604
(iii)Reject Ho if t>1.9842 or z<-1.9842
(iv) Reject Ho if t<-1.9842
Ext 18
