A random sample of 100 cases of heart attack and control were selected. Each subject was asked whether or not they were taking aspirin pill (80 mg) every day before the heart attack. The following table is the information classified cases and control by taking aspirin pill. Use SAS Output to answer the following questions]

a)What is the expected value for cell 2 and 3?

1.38 and 83

2.72.5 and 27.5

3.60 and 90

4.45 and 55

b)What is the chi square value?

1.14.10

2.10.90

3.18.18

4.2.29

c)Can we conclude that cases and control differ with the respect to taking aspirin?Let alpha=.05.

1.Yes, since P value is less than alpha .05 we reject null and we can conclude that cases and control differ with the respect to taking aspirin

2.No, since P value is less than alpha .05 we reject null and cannot conclude that cases and control differ with the respect to taking aspirin

Question 5) A random sample of 100 cases of heart attack and control were selected. Each subject was asked whether or.not they were taking aspirin pill (80 mg) every day before the heart attack. The following Table of row by col table is the information classified cases and control by taking aspirin pill. Use SAS Output to answer the following questions: ( each part 6 point , total 18 points) row(Aspiri n Pill) col(Heart attack) Frequenc Heart attack Expected Percent Row Pct Aspirin Pill Cases Control Col Pct cases contro Total yes 30 60 90 45 45 Yes 30 60 15.00 30.00 45.00 33.33 66.67 No 70 30.00 60.00 40 no 70 40 110 55 55 Total 100 100 35.00 20.0 55.0 63.64 36.36 70.00 40.00 Total 100 100 200 50.00 50.00 100.00 Fisher's Exact Test Cell (1,1) Frequency (F) 301 Left-sided Pr = F 1.0000 Table Probability (P) :.0001 Statistic Value Prob Two-sided Pr