QUESTION 3 (DECEMBER 2018) Studies are often done by pharmaceutical companies to determine the effectiveness of...

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QUESTION 3 (DECEMBER 2018) Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS (acquired immunodeficiency syndrome) antibody drug is currently under study. It is given to the patients once the AIDS symptoms have revealed themselves. The interest of this study is to determine the average length of time in months patients survive after starting the treatment. The following data (in months) are collected. Patient 1 Survival period (month) a) 3 2 4 3 11 4 15 5 16 6 17 7 22 8 44 9 37 10 16 11 14 12 24 Select a sample of five patients out of 12 patients by referring the given random numbers. Consider the first two digits of random number. 10700 09505 58629 16379 07613 42880 11952 32307 56941 02952 78188 90322 b) Construct a 99% confidence interval for the population mean survival period. Hence, interpret the confidence interval. QUESTION 3 (DECEMBER 2018) Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS (acquired immunodeficiency syndrome) antibody drug is currently under study. It is given to the patients once the AIDS symptoms have revealed themselves. The interest of this study is to determine the average length of time in months patients survive after starting the treatment. The following data (in months) are collected. Patient 1 Survival period (month) a) 3 2 4 3 11 4 15 5 16 6 17 7 22 8 44 9 37 10 16 11 14 12 24 Select a sample of five patients out of 12 patients by referring the given random numbers. Consider the first two digits of random number. 10700 09505 58629 16379 07613 42880 11952 32307 56941 02952 78188 90322 b) Construct a 99% confidence interval for the population mean survival period. Hence, interpret the confidence interval.