Solve the problem. Round the point estimate to the nearest thousandth.
-Find the point estimate of the proportion of people who wear hearing aids if, in a random sample of 898 people, 46 people had hearing aids.
A) 0.949
B) 0.050
C) 0.049
D) 0.051

Question

Quizplus · Accepted Answer

The point estimate of the proportion of people who wear hearing aids is given by:

point estimate = (number of people with hearing aids in sample) / (sample size)

Substituting the given values, we get:

point estimate = 46/898 = 0.05122...

Rounding this to the nearest thousandth, we get:

point estimate ≈ 0.051

Therefore, the best choice is D, which is 0.051 rounded to three decimal places.

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