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# how to calculate point estimate

From Wikipedia

Point estimation

In statistics, point estimation involves the use of sampledata to calculate a single value (known as a statistic) which is to serve as a "best guess" for an unknown (fixed or random) population parameter.

More formally, it is the application of a point estimator to the data.

In general, point estimation should be contrasted with interval estimation.

Point estimation should be contrasted with general Bayesian methods of estimation, where the goal is usually to compute (perhaps to an approximation) the posterior distributions of parameters and other quantities of interest. The contrast here is between estimating a single point (point estimation), versus estimating a weighted set of points (a probability density function). However, where appropriate, Bayesian methodology can include the calculation of point estimates, either as the expectation or median of the posterior distribution or as the mode of this distribution.

In a purely frequentist context (as opposed to Bayesian), point estimation should be contrasted with the specific interval estimation calculation of confidence intervals.

## Properties of Point estimates

Question:STA 2023

Answers:The point estimate is always the number in the middle: here, 14.

Question:All I have is a computer output that says regression analysis and the data. It's for comparing latitude and temperature. I know the point estimate is the number of possible outcomes divided by the total number but I don't have any of the info to actually calculate it like that since all I have is the computer output. Please help. Thanks It's to compare the two means so that I can do a confidence interval

Answers:A point estimate is a sample statistic that estimates a population parameter. For example, the sample mean is a point estimate of the population mean. For what population parameter do you wish a point estimate for in this problem?

Question:In a survey of 500 residents, 300 were opposed to the use of the photo-cop for issuing traffic tickets. what is the best point estimate for the proportion of all residents opposed to the photo-cop use? The answer is 60%, but i don't know how to get it