From a sample of 500 items, 30 were found to be defective. The point estimate of the population proportion defective will be:
A) 0.06
B) 30.0
C) 16.667
D) none of these choices

Question

Quizplus · Accepted Answer

The point estimate of the population proportion defective is equal to the sample proportion defective.

Sample proportion = Number of defective items in sample / Total sample size
Sample proportion = 30 / 500
Sample proportion = 0.06

Therefore, the point estimate of the population proportion defective is 0.06. Choice letter A is the correct answer.

From a Sample of 500 Items, 30 Were Found to Be