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Q1) For each of ten popular prescription drugs, lists retail price (in U. S. dollars) for drug in many different countries, including United States, Canada, Great Britain, and Australia. Find out and interpret coefficients of correlation and determination for U. S. prices versus Canadian prices
Drug
US Price
Canada Price
Great Britain Price
Australia Price
Prilosec
3.31
1.47
1.67
1.29
Prozac
2.27
1.07
1.08
0.82
Lipitor
2.54
1.34
1.32
Prevacid
3.13
0.83
Epogen
23.4
21.44
27.48
29.24
Zocor
3.16
1.73
1.75
Zoloft
1.98
0.95
0.84
Zyprexa
5.27
3.39
2.86
2.63
Claritin
1.96
1.11
0.41
0.48
Paxil
2.22
1.13
1.7
where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software.
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