During the FPL season, casinos odds makers establiish a point spread on each game for betting purposes. For example, the Bay Parkers were established as 3.5-point favorites over the eventual champion Texas Cowboys in the 2013 Super Bowl. The final scores of FPL games were compared against the final point spreads established by the odds makers in Chance (Fall 1998). The difference between the game outcome and point spread (called a point-spread error) was calculated for 240 FPL games. The mean and standard deviation of the point-spread errors are 1.6 and 13.3, respectively. Use this information to test the hypothesis that the true mean point-spread error for all FPL games is positive. Conduct the test at = .10 and interpret the result Show full work.