Suppose that team A and team B are to play a National Football League game and that team A is favored by f points. Let S(A) and S(B) denote the scores of teams A and B, and let X = S(A) S(B) f . That is, X is the amount by which team A beats the point spread. It has been claimed that the distribution of X is normal with mean 0 and standard deviation 14. Use data from randomly chosen football games to test this hypothesis.

Chapter1 WhatisStatistics Itisadisciplineandawaytocollectdata/information § Datacanbenumbers(weight,income,height)oritcouldbewords(gender,race,favoritecolor) Variability :Theextenttowhichdatapointsinastatisticaldistributiondivergefromtheaverage Value Symbol Pronunciation Range:ThedistancebetweentheHighestdatapoint PopulationMean (parameter) andthelowestdatapoint Population:Thesetofallindividualpointsweareint