1) Hypothesis test (2 sample) (7 marks) A developer wants to know if the houses in two different neighborhoods were built at roughly the same time. He takes a random sample of houses from each neighborhood and finds the summary statistics for the two shown in the table below: At a : 0.01, test the claim that there is no signicant difference between the average age of the houses Sam le mean ' ' ' ' Neighborhood Population standard deation Sample Size HINT: use test statistic 2 2