Stat 322/332Experimental Design and SamplingAssignment 5Due: Wednesday, November 26, 20081. McDonald Corporation wishes to estimate the average annual sales at its various McDon-ald Restaurants for the current year,μ(y). It takes a random sample ofn= 11 and obtainsthe following data.Letxbe the annual sale for the previous year, andybe the sale ofcurrent year (obtained by doubling the sale of the first six months). Assume thatN= 1,000andμ(x) = 2.43 million dollars.Restaurant1234567891011x22.214.171.124.126.96.36.199.188.8.131.52y184.108.40.206.04.42.05.22.82.02.82.42. Suppose that theN= 1,000 McDonald restaurants in the previous problem are all inthe United States and Canada. There areN1= 800 restaurants in the US andN2= 200 inCanada. Assumeμ(x)1= 2.45 and the data from problem 1 is a stratified random sample
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