The table below shows the average weekly wages (in dollars) for state government employees and
federal government employees for 10 years. Construct and interpret a 90% prediction interval for the
average weekly wages of federal government employees when the average weekly wages of state
government employees is $851. The equation of the regression line is $y = 1.522x - 101.121$.
751 752 796 805 852 874 903 921 953 962
1,003 1,066 1,105 1,154 1,187 1,231 1,278 1,302 1,320 1,381
Wages (state), x
Wages (federal), y
Construct and interpret a 90% prediction interval for the average weekly wages of federal government
employees when the average weekly wages of state government employees is $851. Select the
correct choice below and fill in the answer boxes to complete your choice.
(Round to the nearest cent as needed.)
A. There is a 90% chance that the predicted average weekly wages of federal government
employees is between $ and $, given a state average weekly wage of $851.
B. We can be 90% confident that when the average weekly wages of state government
employees is $851, the average weekly wages of federal government employees will be
between $ and $