pharmaceutical company has developed a new drug that is supposed to reduce blood pressure more than the current medication on the market.

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A pharmaceutical company has developed a new drug that is supposed to reduce blood pressure more than the current medication on the market. The company obtains the records of all patients using the current medication. Of the patients taking the current medication, 100 are randomly selected to participate in the study to determine if the pharmaceutical company is correct. Fifty of the 100 patients are randomly assigned to take the new drug and the other half continue to take the current medication. After 6 months, it is determined that the patients that take new drugs, on average, have reduced their blood pressure more than the patients that have continued to take the current medication.

a. Is this an observational study or an experiment? Explain.
b. Identify the population and the sample for this study.
c. What is the statistical question that the pharmaceutical company is asking?

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