Estimating the Difference between Two Population Proportions

Question 1

A survey asked independent random samples of drivers from Northern states and Southern states about the importance of owning a car with 4-wheel drive (4WD). Of the 1,800 Northerners, 57% said 4WD was important, compared with the 32% of the 1,500 Southerners surveyed.

Revolt · Accepted Answer

The random condition because the data comes from .: is met; The random condition because the data comes from .: two independent random samples

Question 2

A survey asked independent random samples of drivers from Northern states and Southern states about the importance of owning a car with 4-wheel drive (4WD). Of the 1,800 Northerners, 57% said 4WD was important, compared with the 32% of the 1,500 Southerners surveyed.

Revolt · Accepted Answer

✔ is met; The random condition because the data comes from .: is met; The random condition because the data comes from .: two independent random samples

Question 3

a simple random sampleX two samples that are not independent✔ two independent random samplestwo groups in a randomized experiment

Revolt · Accepted Answer

✔ two independent random samples

Estimating the Difference between Two Population Proportions Answers

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