Accepted Answer
A good point estimator for the population variance is: s².What is a two-tailed test?A two-tailed test can be defined as a type of hypothesis test in which a rejection of the null hypothesis occurs for values of the point estimator in either tail of the sampling distribution.In Statistics, the basis of an inference about the population is usually used to determine statistical inference based on all of the statistics that are calculated from samples. This ultimately implies that, the sample mean should be close to the population mean, the sample proportion should be close to the population proportion, and the sample standard deviation should be close to the population standard deviation. In this context, we can logically deduce that standard deviation (s²) is considered as a good point estimator for the population variance.Read more on variance here: https://brainly.com/question/26355894#SPJ1