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a researcher took a sample of 25 electronics companies and found the following relationship between x wand y, where x is the amount of money(in
a researcher took a sample of 25 electronics companies and found the following relationship between x wand y, where x is the amount of money(in millions of dollars) spent on advertising by a company in 2009 and y represents the total gross sales(in millions of dollars) of that company for 2009.
y=3.6+11.75x
a. an electronics company spent $2 million on advertising in 2009. what are its expected gross sales for 2009
b. suppose 4 electronic company spent 2 million each on advertising in 2009 . do you expect thee 4 companies to have the same actual gross sales for 2009?
c. is the relationship between x and y exact or not exact
