Question

•Let’s say someone claims the average population size is 600 feet squared and the housing authority is skeptical of this and thinks this average is too small. It takes out a sample of n=81 and finds the averages of these samples to be 615. It is miraculously known that the standard deviation is σ= 150.

•Let’s say a claim is now made the average population size is 654 feet and the housing authority says this figure is too big. Using the same sample and known standard deviation above find the p-value? At α-level= 0.05 , do we reject or fail to reject Ho?

Answer 1