Question

Consider a sample of oil filters. Their diameters are measured and found to have a variance of 2.04. Give a point estimate for the population variance in diameters of oil filters. Round your answer to two decimal places, if necessary.

Answer 1

Answer: 2.04

Explanation:

We know that if population variance
`(\sigma^2)` the sample variance
`(s^2)` is the best point -estimate for the the population variance
`(\sigma^2)`.

Given : In a sample of oil filters , their diameters are measured and found to have a variance of 2.04.

i.e. Sample variance :
`s^2=2.04`

Then, a point estimate for the population variance in diameters of oil filters.
`(\sigma^2)` = 2.04

Hence, the a point estimate for the population variance in diameters of oil filters= 2.04