A sample of 45 was taken from a population with a mean of 19.5 and standard deviation of 1.6. With a significance level of 0.06, it was concluded that the population mean is less than 20.
coensider the fallowing hrretheds teut- H6-20H4-20 A samoin of 45 prom.pdf
1. coensider the fallowing hrretheds teut: H 6 , 20 H 4 < 20 A samoin of 45 promifet a sampie mean
of 19.5 . The populabon atandard deviation is 1.6 . c. vaing a = 0.06 . an it tie oonhuded that the
popuabisn mean it iest than 20 y