how is the Sx of the sampling distribution related to the Sx of the population?
how is the shape of the ssampling distribution affected by sample size?
(the sampling distribution is of a sample mean obtained by random sampling from an infinite population which has a distribution slightly skewed towards higher values
2007-01-07 06:53:10 · 2 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Unfortunately, I did stats many years ago during my A-Levels and have forgotten most of the notation including the meaning of Sx.
I can with complete certainty tell you that as a sample size increases, the sample distribution will get closer and closer to a Normal Distribution curve. The proof for this is the Central Limit Theorem. There is a solid proof for this theorem but I can't actually remember it.
If Sx is the standard deviation, then the sample Standard Deviation (x-bar) can be used to estimate the population standard deviation (mew U) by multiplying it by 100/99 (one hundred divided by ninety-nine).
I hope this helps!
2007-01-10 05:57:53 · answer #1 · answered by Mubz 4 · 0⤊ 0⤋
Having taken somewhat some college point records classes, i might tend to question any statistical consequences published everywhere. there are a great form of vairables that for the main area, records are beside the point in serving as an precise predictor of loads of something. BB, Raji the eco-friendly Witch
2016-11-27 02:11:00 · answer #2 · answered by Anonymous · 0⤊ 0⤋