In
a random sample of 3044 Oregon households, 2355 have air
conditioning In a similar sample of 2136 Washington households,
1599 have air conditioning. Construct a 98% large-sample confidence
interval for the difference between the proportions of households
in Washington and Oregon which have air conditioning. Use the
interval to explain what conclusion, if any you should draw about
the difference between Washington and Oregon air conditioning use
based on the above data.