Hypothesis Testing Solved Problems | Hypothesis testing examples and solutions | Hypothesis testing

[@DigitalELearning]

👀 Hello Friends, 𝐉𝐨𝐢𝐧 my 𝑺𝒐𝒄𝒊𝒂𝒍 𝑴𝒆𝒅𝒊𝒂 𝑳𝒊𝒏𝒌 for regular updates:
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🙋🏻‍♂𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩 (𝐒𝐢𝐱 𝐒𝐢𝐠𝐦𝐚 (𝟔σ ) : whatsapp.com/channel/0029VaEWKWbIiRovZpAduc0p
🙋🏻‍♂𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩 (𝐒𝐭𝐚𝐭𝐢𝐬𝐭𝐢𝐜𝐬 & 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡) :whatsapp.com/channel/0029VaAGwzTDJ6H9S5Q4Ow0m
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[@MARK-hw8jm]

Why did he take the chisquare for the last example?

[@CalebRodrigues7]

Sir why did you use chi square table for the last question and not the T table

[@DigitalELearning]

👀 Hello Friends, 𝐉𝐨𝐢𝐧 my 𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩 𝐂𝐡𝐚𝐧𝐧𝐞𝐥𝐬 for regular updates:
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1) 𝐋𝐞𝐚𝐧 𝐬𝐢𝐱 𝐬𝐢𝐠𝐦𝐚: whatsapp.com/channel/0029VaAUuqs4inooet3e4S3O
2) 𝐒𝐭𝐚𝐭𝐢𝐬𝐭𝐢𝐜𝐬 & 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡 : whatsapp.com/channel/0029VaAGwzTDJ6H9S5Q4Ow0m
3) 𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: whatsapp.com/channel/0029Va8slQdEAKWAhXoQK13B
4) 𝐒𝐢𝐱 𝐒𝐢𝐠𝐦𝐚 (𝟔σ ) : whatsapp.com/channel/0029VaEWKWbIiRovZpAduc0p
5) 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐀𝐬𝐬𝐮𝐫𝐚𝐧𝐜𝐞 & 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 : whatsapp.com/channel/0029VaAKJBGKGGGDjcK4mw2h

[@silverdennis6239]

Thank you sir you made everything so easy😊 I'm silver from Nigeria.

[@DigitalELearning]

You are very welcome

[@quincejohnsjr.9431]

As if we will tables in the exam

[@pranavindulkar9822]

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.

[@haleylearn]

WOWWWWWW This is all i need, thank you so much about this, very clear

[@DigitalELearning]

Glad it was helpful!

[@krrsh]

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?

[@servantsofAllah0864]

Excellent explanation 😊

[@shashidharanneboinaaa6393]

How we take 30 directly..? Please explain

[@DigitalELearning]

Which example you are taking about. Can you pinpoint so that I can tell

[@shashidharanneboinaaa6393]

In z test we take >= 30 why we should take only 30..?

[@lightofgod7410]

thanks a lot :) i have an exam tomorrow it helped me so much

[@DigitalELearning]

Welcome 😊

[@elinadiary9357]

Beautifully covered thanks sir can you please also cover multiple population questions

[@Ayusharma114]

when to use t test when to z test how to determine

[@DigitalELearning]

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]

​@@DigitalELearning then why did we use t test in "Example-2" where the standard deviation (.008) was known?

[@divvvvyaaaa]

Your videos are too helpful thanks a lot

[@likithab187]

Thanks a lot sir

[@DigitalELearning]

Most welcome

[@clashingwithrj1173]

Thank you 🙏🙏

[@DigitalELearning]

Thank you! Cheers!

[@Kunwar07Tila07]

Sir how do I know it is 2 tailed test

[@DigitalELearning]

A two-tailed test will test both if the mean is significantly greater than x and if the mean significantly less than x.

[@DigitalELearning]

Two tailed test tells you that you're finding the area in the middle of a distribution