Derive Sample Size Equation used for Proportions
Рет қаралды 8,582
Күн бұрынWhere does the sample size equation come from? Video shows how to derive the sample size equation from the confidence interval.
Calculating Sample Size of Proportion
• Calculate A Sample Siz...
Calculating Sample Size Around Mean
• Calculate Sample Size ...
Calculating z scores
• z scores
Facebook
/ partymorestudyless
Professor of the Universe: David Longstreet
/ davidlongstreet
MyBookSucks.Com
@FreespiritFrancon 8 жыл бұрын
solved my problem! Many thanks!
@apersnn9508 Жыл бұрын
If you can answer this I would be truly grateful, if my paper questioning a population knowledge of sth and I need to use the proportion formula to get my Sample size , if the paper I am using the "p" from displaying knowledge as a score ,how can I calculate the proportion to compensate with in the formula mentioned ?
@mohammedomar4012 9 жыл бұрын
It is much better. Please if you explain me through video.. Thanks :)
@royals2013 2 жыл бұрын
What about for two proportions? and how do you get on top of that (z_alpha/2 + z_beta)^2
@sudarshanachakra3.022 Жыл бұрын
exactly ....i was thinking the same .... if you have any link please send
@mohammedomar4012 9 жыл бұрын
Please, explain me. How i use the method of semi average to find trend value.???
@statisticsfun 9 жыл бұрын
Mohammed Omar Thanks for your question. I am not sure what you mean by a semi average. Can you give me an example or two of what you are trying to calculate?
@mohammedomar4012 9 жыл бұрын
Thanks for your attention.. I have an example: Use the semi average method to find trend value for the following data per gross incom of Pakistan for the year. Year 2001 to 2010. Income 318, 326, 337, 340, 359, 365, 372, 381, 402, 410.
@firefrostpeacemaker 7 жыл бұрын
Um... how did the z-score get squared? In the margin of error equation, the z-score was in a square root. So, when you squared both sides, in the beginning of your derivation, how did you miraculously come to gain z-score squared?
@firefrostpeacemaker 7 жыл бұрын
Never mind. The reason is because the z-score wasn't in a square root to begin with, in the confidence interval. It was a minor mistake.
@shaoboliu 4 жыл бұрын
@@firefrostpeacemaker yes, you are right.
@mohammedomar4012 9 жыл бұрын
I'll be waiting for ur answer...$ir:)
@darraghkelly1079 2 жыл бұрын
There is a mistake in the formula, please remove this video. The the z-score should not be in the square root.
statisticsfun
Рет қаралды 94 М.
Immersed
Рет қаралды 53 МЛН
MATHStorya
Рет қаралды 103 М.
The Organic Chemistry Tutor
Рет қаралды 495 М.