Researchers are interested in conducted an analysis about the effectiveness of a

Question

Researchers are interested in conducted an analysis about the effectiveness of a new investigational drug aimed at increasing overall survival among HIV positive patients co-infected with Hepatitis C. Current national data claims that 5 year survival for patients with HIV and Hepatitis C is 32%. After treatment analysis, the research team estimates that 5 year survival among those treated with the new medication is 37%.

Does the national data report contain a parameter or an estimator?

Does the study report a parameter or an estimator?

Explanation / Answer

Since both the params are based out of the national data we conclude that the claim on the national data and the after treatment analysis was based on a population. Any number based on population is an parameter and not an estimate.

Estimate is based on a sample of a population, Parameter is based on the population itself. Since both the points i.e. on national data report and the study report are based on population.

Hence, both the points are Parameters and not Estimates

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