Question

Consider a sample of push pins. Their weights are measured and found to have a variance of 2.81. Give a point estimate for the population variance in weights of push pins. Round your answer to two decimal places, if necessary.

Answer 1

The best point estimate for population variance is 2.81

Explanation:

We are given the following in the question:

We have a sample of pushpins.

The sample variance of weights of pushpins =

`s^2 = 2.81`

We have to estimate the population variance.

Point estimate foe population variance is the sample variance itself.

Thus, we can write:

`\sigma^2 = s^2 = 2.81`

Thus, the best point estimate for population variance of weights of pushpins is 2.81