Estimating the Difference between Two Population Proportions Answers

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Large Counts condition:

Are all the conditions for inference met?

n2 =

Since contained in the interval, there is to believe that there a difference in the proportions of suburban households that have SUVs versus urban households that have SUVs.

Random condition:

In the study on a drug for lowering cholesterol levels, after 1 month:41 of 55 subjects reduced cholesterol with new medicine.34 of 50 subjects reduced cholesterol with old medicine.99% confidence interval: (–0.163, 0.293)Choose the correct conclusion.

The random condition because the data comes from .

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State: for p1– p2, where p1 = of patients like these whose cholesterol would be lowered by using the new drug, and p2 = of patients like these whose cholesterol would be lowered by using the original drug.

Since contained in the interval, there is to believe that there a difference in the proportions of suburban households that have SUVs versus urban households that have SUVs.

10% condition:

The random condition because the data comes from .

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State: for p1– p2, where p1 = of patients like these whose cholesterol would be lowered by using the new drug, and p2 = of patients like these whose cholesterol would be lowered by using the original drug.

Since contained in the interval, there is to believe that there a difference in the proportions of suburban households that have SUVs versus urban households that have SUVs.

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State: for p1– p2, where p1 = of patients like these whose cholesterol would be lowered by using the new drug, and p2 = of patients like these whose cholesterol would be lowered by using the original drug.