Hypothesis Test for Variance
Рет қаралды 18,733
8 жыл бұрын
@majjoor Жыл бұрын
OMG this is so perfectly explained!
@theodoresweger4948 10 ай бұрын
Welldone and well illistrated, Thank you...
@Stephen10114 Жыл бұрын
Thank you!
@matthaselhorst542 4 жыл бұрын
I haven't studied or looked at any material on this with an exam in an hour and after watching this i feel its gonna be cake
@MoonlitPhoenix0 Жыл бұрын
Was it cake?
@ivosilva2796 4 жыл бұрын
Im probably a bit late, can you explain why you chose that test statistic ?
@TheRandomQueen 4 жыл бұрын
Apriciated
@maths2bsquared172 2 жыл бұрын
What book are u using together with the chapter
@egehancanoz7816 Жыл бұрын
perfectt
@mindacid3274 4 ай бұрын
perfect111
@haretztj4682 Жыл бұрын
would that be -1.735 or 1.735? Since its on the left side of the bell curve. Eitherway the test statistics is still at the non rejection region but still, i need to know
@mohammedhisham6030 Жыл бұрын
This applies for distributions that are symmetric on both sides like the normal distribution or the t distribution. Chi squared is not.
@loureenvillarosa223 Жыл бұрын
does the sample variance doesn't need to be squared?
@Stephen10114 Жыл бұрын
No, you only square if the value the question gives you is the standard deviation. If the question gives you the sample variance, you don't need to square it!
@Miguel-kx3ri 3 ай бұрын
Hi sorry I don't really get how do you obtain the degrees of freedom
@elledgeca 3 ай бұрын
For this test the degrees of freedom is n-1, the sample size minus one.
@Miguel-kx3ri 3 ай бұрын
oh thanks!!
@ayeshaeshal6047 Ай бұрын
How would i know that the DF is 9, please answer my comment, tomorrow is my exam
@twosigma1371 Ай бұрын
For this test the degrees of freedom is the sample size minus one. So for this example, the sample size was 10 and the degrees of freedom is 9.
@ayeshaeshal6047 Ай бұрын
@@twosigma1371 thank you so much, now i'm fully done with my preparation. Thanks a lot for your reply, i'm from Bangladesh, take love.
@bakshindersingh9526 Жыл бұрын
chl samar pagal ha
Chuck Holbrook
Рет қаралды 15 М.
samim sahil official
Рет қаралды 3
Global Health with Greg Martin
Рет қаралды 2 МЛН
Prof. Mohammad El-Ashhab أ.د. محمد الأشهب
Рет қаралды 162 М.