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Mathematics 23 Online
OpenStudy (anonymous):

Check my answer? statistics?

OpenStudy (anonymous):

normal distributions seems right but idk

OpenStudy (anonymous):

wish i could help, this is out of my range

OpenStudy (anonymous):

A statistic is said to be an unbiased estimate of a given parameter when the mean of the sampling distribution of that statistic can be shown to be equal to the parameter being estimated. For example, the mean of a sample is an unbiased estimate of the mean of the population from which the sample was drawn.

OpenStudy (anonymous):

so i would NOT go with normal distribution

OpenStudy (anonymous):

looks like maybe "sample mean" would be better, but i would bet no more than $6 that it is right

OpenStudy (anonymous):

yeah I read up on all their definitions and it seems either that or population parameter seems right

OpenStudy (anonymous):

all this verbiage is gibberish to me maybe @jim_thompson5910 has a better answer

jimthompson5910 (jim_thompson5910):

the whole goal of statistics is to measure a population parameter with a sample statistic example: you wish to find the population mean of the height of men in the entire country. You cannot measure all of their heights (at least not at a feasible cost), so you take a representative sample and compute the sample mean. The sample mean is the statistic estimating the parameter

jimthompson5910 (jim_thompson5910):

a sample statistic that does a relatively good job at measuring the population parameter is considered an unbiased estimator

jimthompson5910 (jim_thompson5910):

if it were biased in some way, then it's not painting the true picture

OpenStudy (anonymous):

So population parameter would be my answer right? since that's what statistics are targeting?

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

yes that is correct

OpenStudy (anonymous):

thanks

jimthompson5910 (jim_thompson5910):

np

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