The following data is from a simple random sample:
15, 23, x, 37, 19, 32
If the point estimate of the population mean is 23, then the value of x is:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 12
The point estimate of the population mean is the sample mean. With 6 observations:
\( \displaystyle \frac{15 + 23 + x + 37 + 19 + 32}{6} = 23 \)
\(126 + x = 138\)
\(x = 12\)