Given the scores 10, 12, 15, and 20, what is the point estimate for μ?
A) 57
B) 14.25
C) 19
D) ±10

Question

Quizplus · Accepted Answer

The point estimate for μ is the sample mean, which is calculated by adding up all the scores and dividing by the sample size. (10+12+15+20)/4 = 14.25. Therefore, the answer is B. Option D is incorrect because μ is a population parameter and cannot have a plus-minus sign. Option A and C are incorrect as they are just the sum of all the scores and cannot be the point estimate for μ.

Given the Scores 10, 12, 15, and 20, What Is