In the following list the row marked x gives the prices paid by the previous owners to purchase houses in a particular town in 1990; the row marked y gives the price paid by the current owners to purchase the same houses in 2000. P-963 x 33 37 38 39 41 36 y 67 73 74 75 97 84 Comment on the null hypothesis H()

that there is no relationship between the purchase price paid by the current owner and the purchase price paid by the previous owner and use the results given to complete an appropriate statistical test of the null hypothesis. Do you believe that knowledge of the previous purchase price of a house will be of no use in predicting the current purchase price? Discuss.