Question

Researchers determined that 60 Puffs tissues is the average number of tissues used during a cold. Suppose a random sample of 100 Puffs users yielded the following data on the number of tissues used during a cold: X = 52 and s = 22. Suppose the alternative we wanted to test was H:u<60. The correct rejection region for a = 0.05 is: reject H, ift < -1.9842. O reject H, ift< -1.6604. O reject H, if:> 1.6604. "O reject H, if > 1.9842 or Z<-1.9842.

Answer 1

I have to think this again. be back later x=2.2267(55).