Sale Prices for Houses The average sales price of new one-family houses in the Midwest is $250,900 and in the South is $261,900 . A random sample of 30 houses in each region was examined with the...

Sale Prices for Houses
The average sales price of new one-family houses in the Midwest is

and in the South is

. A random sample of

houses in each region was examined with the following results. At the

level of significance, can it be concluded that the difference in mean sales price for the two regions is greater than

?

(b) Find the critical value.

(c) Compute the test value.

(d) Make the decision.

(e) Summarize the results.

Use

for the average sales price for a house in the South.