According to the CBC, 2.539 million Canadians watched the 1997 Grey Cup game. This figure represents a market share of 29%: that is, 29% of televisions were tuned to the game. Assume that this game is being broadcast and 4000 televisions are randomly selected.
Consider as unusual any result that differs from the mean by more than two standard deviations. That is, unusual values are either less than σ - 2σ or greater than µ + 2σ.
a. For such groups of 4000, find the mean and standard deviation for the number of televisions tuned to that game.
b. Is it unusual to find that 1372 of the 4000 televisions are tuned to the game? What is the likely cause of a rate that is considerably higher than 29%?