Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average (mean) length of time in months patients live once starting the treatment. A researcher followed a set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected.
Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves.
Of interest is the average (mean) length of time in months patients live once starting the treatment. A researcher followed a set of 40 AIDS patients from the start of treatment until their deaths. The following data (in months) are collected.
Data, not ordered (n=40):
3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 8; 24; 18; 47; 33; 34
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Calculate the Relative Frequency of patients living more than 30 months after the start of treatment.
Question 1 options:
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9/40 |
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0/40 |
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2/40 |
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12/40 |
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