Why did he take the chisquare for the last example?
@CalebRodrigues72 ай бұрын
Sir why did you use chi square table for the last question and not the T table
@pranavindulkar98224 ай бұрын
In example 1 ane example 2 the question are almost same In que 1 you said m is not equal to x bar and in que 2 you said m < x bar. Que 1 states m > x bar therefore why not use a one tailed test. Can you please clear my doubt.
@krrsh5 ай бұрын
One doubt... how did you select z-test, t-test and chi-square test for the given examples... in what situation each one of them should be used?
@silverdennis623910 ай бұрын
Thank you sir you made everything so easy😊 I'm silver from Nigeria.
@DigitalELearning10 ай бұрын
You are very welcome
@servantsofAllah0864 Жыл бұрын
Excellent explanation 😊
@haleylearn10 ай бұрын
WOWWWWWW This is all i need, thank you so much about this, very clear
@DigitalELearning10 ай бұрын
Glad it was helpful!
@elinadiary9357 Жыл бұрын
Beautifully covered thanks sir can you please also cover multiple population questions
@lightofgod74102 жыл бұрын
thanks a lot :) i have an exam tomorrow it helped me so much
@DigitalELearning2 жыл бұрын
Welcome 😊
@divvvvyaaaa Жыл бұрын
Your videos are too helpful thanks a lot
@shashidharanneboinaaa63932 жыл бұрын
How we take 30 directly..? Please explain
@DigitalELearning2 жыл бұрын
Which example you are taking about. Can you pinpoint so that I can tell
@shashidharanneboinaaa63932 жыл бұрын
In z test we take >= 30 why we should take only 30..?
@likithab187 Жыл бұрын
Thanks a lot sir
@DigitalELearning Жыл бұрын
Most welcome
@clashingwithrj11737 ай бұрын
Thank you 🙏🙏
@DigitalELearning6 ай бұрын
Thank you! Cheers!
@Ayusharma1142 жыл бұрын
when to use t test when to z test how to determine
@DigitalELearning2 жыл бұрын
Z test are used with known standard deviation and sample size > 30. T test are used with Unknown standard deviation and sample size < 30.
@wasinatmoon5716 Жыл бұрын
@@DigitalELearning then why did we use t test in "Example-2" where the standard deviation (.008) was known?
@quincejohnsjr.94319 ай бұрын
As if we will tables in the exam
@Kunwar07Tila072 жыл бұрын
Sir how do I know it is 2 tailed test
@DigitalELearning2 жыл бұрын
A two-tailed test will test both if the mean is significantly greater than x and if the mean significantly less than x.
@DigitalELearning2 жыл бұрын
Two tailed test tells you that you're finding the area in the middle of a distribution