Large Sample test for Single Standard Deviation | Test of Significance | 2 Tailed Test | Statistics

[@cricketer_akash1234.]

thank you sir

[@anshu4219]

Sir I think in formula of Sample Varience (S²) the denominator is n-1 not n,,, means ∑ (xi - x bar)² = (n-1)S², that changes the formula of test statistics also...

[@wordsoflambooz53]

sir please probability complete krva do

[@toonlovers2918]

Yes sir

[@ayushshaw1755]

Sir why u use yhe term " may" while writing hypothesis statement. It is imparrting uncertainty.
Doesn't it should like population s.d is 7.

[@HritomaBanerjee-fb9ou]

sir if the value of S isn't given then shall we solve by summation process??

[@TendingtoInfinity]

Yes.. use the formula of S

[@ChandrahaS-YT]

Sir
Sample sd = S
Population sd = σ
But, S=σ/√n
As, this is normally distributed.
So, S²/σ² = 1/n
So, test statistic = 1
How is that possible ?

[@TendingtoInfinity]

Sir timestamp please?

[@ChandrahaS-YT]

​​​@@TendingtoInfinity
Around 6:50

[@b1-08arshichand2]

@tendingtoinfinity
Sir whats about the chi square test for goodness to fit and independence of attributes..
Sir please ye topic padhaa dijiye

[@b1-08arshichand2]

@TendingtoInfinity

[@TendingtoInfinity]

Yes.. will cover that too.

[@sounavachatterjee2636]

sir what's the purpose of degree of freedom?

[@TendingtoInfinity]

Degrees of freedom are mainly needed in t test, that is actually an parameter to fix the critical value

[@souvikroy3584]

Thank u so much sir ✨
For your contribution in UA-cam
My syllabus is going to complete

[@TendingtoInfinity]

All the best. 😊