Hypothesis Testing Full concept in Hindi | statistics | Engineering Maths 4 Lectures

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[@Lastmomenttuitions]

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[@ratanprajapati93305]

Level of significance = 5% hai to dono taraf range 2.5% kar ke chorna hoga tab total LOS=5% hoga and Level of Confidence=95% hoga

[@ratanprajapati93305]

Par aapne yeha miss kiya hua hai ye

[@Siddharth_9official]

Z=1.96 tht part is not explained well

[@prajeshparekh9760]

Bhaiiiii aap ne variance ko SD me convert kiye Bina hi formula me put kiya he n direct book me se jawab laya hei .....samaj ne wale samaj jayenge bt ye comment beginners ke liye tha Mera 🙏🏻

[@SureshChouksey]

Bhai woh bhi "last moment" par hi padh ke aye the

[@SohamMandaliya]

@@SureshChouksey Right😂

[@indoorstrikes6265]

Thank you bro

[@indoorstrikes6265]

U saved my life

[@tejalpatil1507]

Yes Right.

[@sachinrathi7814]

Well explained but want to correct 2 things. 1.We never accept the null hypothesis , we either reject null hypothesis or fail to reject null hypothesis. 2. If it is two tailed test then rejection region should be divided by 2 i.e instead of .05, it should be .025 on both side.

[@rakeshpundir4053]

Right

[@ShubhamSingh-bj3ms]

Shubham Singh 1 second ago bhai 1.96 kaise koi bhi jaldi batao

[@mrinalchandra]

1.96 usne z test k normal distribution table se lia h. He did not tell that. There are values assigned to that

[@chindip]

@@mrinalchandra he told at that time from chart or table we get these values in research methodology last some pages

[@sweetdeeps807]

Variance is square of standard deviation i.e. sigma square fir aapne question me given variance ki value ko sigma (standard deviation) kiyu mana ?

[@alfaandomega10]

You have made a couple of mistakes 1) In the question, variance is given as 10.24. To find the value, you use Standard Deviation, not the variance. So, you should have taken the square root of 10.24, which is 3.2 2) Since level of significance is 5%, it is 2.5% on each side as it is a two-tailed hypothesis Z value would be: (6.2 - 5.4)/(3.2/sqrt(50)). This is coming as 1.77. As per your method, it would have been only 0.55 Since this is 2 tailed hypothesis, we have to look up the Z value for the probability of 97.5% (not 95%) on the right hand side, which is 1.96. If we look up 5% on both sides, it would have been 95% i.e. 1.645, not 1.96 Your answer is correct as you are getting correct pre-calculated values in the background but the methodology is wrong and using your calculations would give different numbers.

[@vaibhavdatta777]

thank you sir

[@BlackSpadeZ]

Thank you much I was confused as to how 1.96 is coming and you cleared my doubt

[@Youcan.-.]

thank u sir

[@ankitayadav2690]

Yes you are right

[@manish.2714]

Thanku sir

[@jayantaacharjee1238]

Level of significance 5 % distributed to the both side i.e. 2.5% on left and 2.5% on right.

[@rishabhsolanki4512]

If it's a two tailed distribution

[@jayantaacharjee1238]

@@rishabhsolanki4512 and yes, this problem is two tailed distribution

[@RameshSharma-kb7qc]

Your example is two tailed test. As your alpha is 0.05 then both side rejection area will be alpha/2 which is 0.025

[@bhavanasharma629]

Yes

[@pragneshdarji6139]

​@@bhavanasharma629😊l0😊llpl

[@GeetaNakar]

Variance = 10.24 given means sigma( standard deviation) is square root of variance = 3.2 and this is sample standard deviation, not a population standard deviation, so ee have to find out t- test statistics.

[@hamzahafeez2909]

Agreed on 1st point.... but when sample variance is given then z test is supposed to be used....

[@cyrilsouza6443]

great explanation 👍 Just the z- score of 0.05 confidence is 1.64 So 177> 164 Therefore, Null Hypothesis is not accepted. (I am not that sure just confirming)

[@ayushdewangan7782]

Z-score of 0.01 confidence is 1.645...... Video is correct here...

[@jagadeeshalubilli5218]

In that question variance is given,we need standard deviation ,but u took variance directly.

[@amitava1973]

Jagadeesh. He should have mentioned that he is using the standard error of the sample mean while calculating the Z value of the sample.

[@nagendraprashadsingh967]

Root kar k kigiye, ans same hi aayega .

[@knowledgeispower7321]

Finally found is topic ka solution !! Thanks alot!!! For providing practical analysis on such terrible terms! ❤️

[@ayushigupta0110]

z= 0.55

[@vedprakashsharma1150]

Please upload a viedeo on f-test, z-test and student t-test so that we can fully understand this topic.

[@rachitgupta8794]

13:45: S.D of the population = UnderRoot(Variance). Since the value 10.24 is the variance, it's underRoot has to be taken and that would be 3.2. Only then the final Z value will be 1.77. Please Take Note!

[@tactics_fc8937]

🤘👍

[@Sonia-gw9hg]

Is there anyone who can make assignments on these tests?

[@ericmacwan592]

Yup bro thanks for advice

[@jjjjkk9700]

I want help

[@TechnologyViralNews]

Yes correct, I was also thinking the same

[@soumentalukder5892]

11:37 please be a bit concerned about auto-focusing problem. Setup your camera manually from the next video onwards please

[@YashYadav-lg5fv]

Camera auto focusing

[@vanshthakur102]

In the question you were given variance which is sigma square and you used it as Standard Deviation(sigma). The value of Z you calculated was 1.77 then you changed it to 1.96

[@owais5337]

If level of significance is 5% then u should have to take 95% of level of confidence in one tail test And if u r doing two tail test then u should take alpha take 2.5 % i.e. 0.025 at both end

[@Poojachoudhary-jv6iy]

Yrrr ye meko smj hi nhi aati. Or bio me bhi statistics pta nhi kha se aa jati h

[@raj9101990]

Starboy world Thank you bro for mentioning it.

[@owais5337]

@@Poojachoudhary-jv6iy heheh😅 Stats is every where

[@owais5337]

@@raj9101990 ur welcm bro 😊

[@Toxicboi-nr1ty]

Z=1.96 kaise aya

[@alapatisoumith5161]

in the question solved in the video, variance was given but we need to consider standard deviation in the formula so what is shown was wrong still the answer is correct because he directly wrote the answer without calculating . But the explanation helped me Thank you for that .

[@rohitdas490]

Your voice is so loud and clear, it made the video really awesome

[@entertainmentforall2409]

your method of teaching is very good am appricade you

[@AryanKohli-hkscx]

The channel name is so accurate XD

[@NoobMaster-ub5ls]

Lol, he didn't get it, and gave you heart.

[@krishanlal3065]

One more point I want to add. In the question. 10.24 is the sample variance not population variance. Under such situation t-test is applied not Z-test. Better you consult some standard book of statistics.

[@myansis4047]

Very splendid explanation..... You cleared basic terms regarding this topic.... Keep it up.....,,👍

[@MohammedMohammed-id6ij]

Bro my sir ask one question Like find a any research problem And show ther level of significant and What statistical tool will be used in that Which hypothesis method is used And there scope So what is tha answer for that And how we present him

[@sourav_kr_dubey]

Bhai. Sigma = population std. Deviation hota hai na . Sample Variance = S^2 hota hai na????? 🙄🙄

[@jawadsaleemvlogs7916]

Han jiii

[@yutisharma3673]

if the standard deviation of output per acre from a sample of 34 representatives firms producing wheat 83 kg is the hypothesis that standard deviation of output per acre of all firms producing wheat 107 kg rejected at 5% level of significance.. Please solve this

[@abhishekrana5636]

Hello Sir, Could you please give an example of Hypothesis testing using t-distribution ?

[@vjukulkarni6057]

Hi Sir, i have applied hypothesis and i got there is an significant change in two groups,so now How to check the total percentage of change in Control group and Experimental group.i want to know exact value of that change ,

[@shambhaviaggarwal9977]

Awesome video! Ps. at 10:57, Variance is represented as Sigma square.

[@HimanshuSharma-jj7ml]

but in this care variance is just sigma

[@SureshChouksey]

Woh bhii last minute hi padhke aye the bro

[@suryanshvsingh5496]

Sahi bol rahi ho meri jaan

[@aakankshagosain4749]

@@suryanshvsingh5496 ooo nalle

[@dipanshusinghrawat7128]

@@aakankshagosain4749😆

[@invincible6230]

so after accepting null hypothesis, which will be the new mean of sample, calculated one or the given one, i.e. 6.2 or 5.4

[@ChandrapalSd]

Yes there are some mistakes in this video, but the explanation is awesome. And surely it helps in the last moments ;)

[@MONOJIT001]

Advanced congratulations for 1 million 🎉❤

[@daniyal.zahid23]

Bro u have got full grip of it Hats Off For Ur. .Effort

[@Lastmomenttuitions]

Thanks

[@saisharannune]

I have a doubt regarding critical value? How can we give value to it as 1.96 ? I didn't got this point....

[@prasannathapa1024]

usne integration nhi kiya bas value de diya

[@harshitsundriyal]

It's a Z-score.. we have table for it.. you can also calculate it using the formula for Z-score .

[@shavetakoundal2426]

I literally watched several videos but this concept is clear to me from your video

[@mayurjani7898]

विषय को बहुत अच्छी तरह से समजाया अलग अलग उदाहरन के साथ मार्गदर्शन दिया। धन्यवाद

[@Lastmomenttuitions]

Your welcome

[@BrokenRecord-i7q]

Thanks, great explanation using real life questions!

[@siddharthkapkar9168]

Over all video was good except that camera focusing. Guys can any one can explain step 4 n 5 as the professor was lil bit fast on the same. Thanks

[@subratkumarnaik6428]

Your way of understanding to people is very excellent

[@ayushigupta0110]

in this question variance is given, so you have to take out standard deviation from the same, instead of 10.24, 3.2 will be came, then the answer is 1.77. please mention this too, otherwise its confusing

[@rajkumarbiradar3587]

Applied Mamathematics... Beautiful simple meaning of hyphothesis

[@meenazshaikh7450]

Really a last moment tuition 🤣🤣

[@Commercelife15]

Am so Confused about this topic but when am see your video truly am understand hypothesis thnku so much for this osm video your way of teaching perfact. 😊😊

[@preetimashi5069]

Z=1.77 ye value kese nikli sir plese help me

[@nikhilmahera8473]

Yes sir , mera bhi ans nhi aa rha

[@priyatrikoti12345]

1 saal se mujhe ye kabhi samaj nh aaya but aaj sb ckear ho gya ek hi baar mai thanks a lot for making this video❤🎉

[@GeetaNakar]

Critical value of 0.05 is NOT 1.96 1.96 is the critical value of 0.025

[@vijayalaxminyamagouda9505]

Yaa even i too didnt get that

[@revolutioniseducation77]

Thank you so much sir first time I understood something in statistics

[@chlpratyusha1912]

sigma is squareroot of variance, please correct it or atleast add in description

[@AbhishekPandey-fs3ry]

Thanks bro but plzz upload videos on remaining topics too asap !!

[@yogitagoyal4165]

Sanchit sir video on this topic are also very nice...can refer that one also...

[@drashyakushwah5452]

Thank you soo much.. it cleared my hypothesis concepts 😊 Explained very well👍

[@AbdulJabar-hy5tu]

Mujay samjadengy ?

[@i_m_regard]

02:29 Hypothesis testing is used in statistical analysis to find out facts or conduct surveys. 04:58 Hypothesis testing involves comparing a null hypothesis with an alternative hypothesis. 07:27 Null hypothesis and alternative hypothesis are mathematical opposites. 09:56 The level of significance determines whether the null hypothesis is accepted or rejected. 12:25 Performing hypothesis testing to determine if a sample is drawn from a normal population 14:54 Understanding hypothesis testing in statistics 17:23 The critical value in hypothesis testing is determined based on the level of significance, such as 5%. 19:52 Hypothesis testing involves 5 steps

[@AyushTheRuler]

Mera calsi mai 1.77 nhi h kuch aur hi values arah h tumhara 1.77 arah h kya calsi mai?

[@khanjan7016]

Best lecture sir 👌👍...loved it 😍😍

[@brijeshchaudhari8294]

Good explanation about hypothesis testing and how to calculate and conclude level of significance .... thank you

[@ganeshr3297]

Thank you Sir ..but It is very difficult to search all the statistics videos ..Please make one playlist individually.

[@mahendravasava5285]

સંશોધન Hypothesis testing વીશે ખુબ ઉડાણપુવૅક માગૅદશૅન પૂરૂં પાડવા બદલ આપનો ખુબ ખુબ આભાર સર

[@hamzanazeer2512]

U did it wrong man it is two tail so divide 0.05 by 2=0.025

[@HassanShams01]

Yes exactly

[@pritamhait15]

Yes, he was wrong. It will be 0.025 in both side.

[@arfabadar3840]

Yes it's two tail

[@amitabhshekhar2558]

Yes

[@shamprasadvarijaraghu6878]

Thank you for this video and information.

[@Lastmomenttuitions]

Your welcome

[@sheetalkalhapure4247]

Excellent explanation regarding null hypothesis....thanks

[@Lastmomenttuitions]

Your welcome

[@MrAbdullah_Ch]

Thank You for this great video ☺️ But I've to ask something that how do you put 1.96 from the curve?

[@miss_Hima_]

at 5% level of significance 1.96 is the value of two tailed test

[@MrAbdullah_Ch]

@@miss_Hima_ OK Thank You ☺️

[@anubhavkumar9189]

@@MrAbdullah_Ch bhai mujhe hypothesis testing nhi aati aur ab econometrics bhi nhi aa rhi bhai bata deh hypothesis testing kaise samaj ayega

[@MrAbdullah_Ch]

@@anubhavkumar9189 I've placed a video about hypothesis testing. Check that

[@MrAbdullah_Ch]

@@anubhavkumar9189 kzbin.info/www/bejne/f3WXp5aOi7J7bqs

[@RiyazKhan-zv4dv]

bhai 3 cheeze galat batayi hai aapne 1- std=sqrt(variance) 2- level of significance both sides par 0.025each distribute hoga kyuki total 0.05 hai 3- agar z value center mai lie karta to hai fail to reject bolte hai, accept nahi karte hai. baaki apki video achi thi and concepts easily samajh aa gaye the. Thank you

[@laibaarraik729easyconcept]

thankyou so much sir buhat achy se smjh agya ha... but kindly answer one thing what is critical value for 1%? 5%ke lye to apny btaya ha 1.96... what will be fo 1%?

[@PraneshPyaraShrestha]

it is two tailed test so, rejection region should be divided by 2..

[@bandanasinha6665]

Thank u so muchhhhhhhhhh....u made this tedious subject uncomplicated 🙏👌

[@Lastmomenttuitions]

Your welcome

[@zobiagull6380]

Sir je you are great kash mujy ap say parhny ka moqa mily number to description box mn dal dety sir, ap bht intelligent hen sir

[@DrWD-hr6ez]

Jazak allah khaira , allah aapko kamyabi dey aur salamat rakhey

[@mansukhbhaimaru2758]

ખૂબ સારી ને સરળતાથી સમજાવ્યું . નલ અને અલ્ટ્રેટેટીવ બંને વિશે સહજ રીતે સમજ પાડી છે,thanks

[@nidhi10sharma]

I am just thankful i found this video, you made it so simple to understand quite heavy concept.

[@Lastmomenttuitions]

Thank you

[@sahilgulati5440]

GOOD GOING BROTHER..I LOVE U.. U OPENED MY EYES...i was confused but not now..

[@deepkumbhare3938]

Sigma mean standard deviation bro and (sigma)2 mean variance you should correct it

[@neerajkumarjain3969]

alpha 0/5 means 95% acceptance level and 5% rejection. you have shown one side 5%. but it should be 2.5% each side. kindly clarify. you cant take 5% both the side.

[@kiranjoshi560]

you are correct

[@maninderkaur9076]

If it's one tail test it will be 5℅on one side if it's two tail test it will be 2.5℅ one both sides

[@abheekgupta8350]

sir how can you have standard deviation(sigma ) in formula of test statistic when you don't know the population standarddeviation? how do we know the value of sigma in standard error?

[@arpitgupta9089]

sir, ye question samajh nai aa raha: Individual filing of income tax returns prior to 30 June had an average refund of Rs 1200. Consider the population of "last minute" filers who file their returns during the last week of June. For a random sample of 400 individuals who filed a return between 25 and 30 June, the sample mean refund was Rs 1054 and the sample standard deviation was Rs 1600. Using 5 % LOS, test the belief that the individuals who wait until the last week of June to file their returns to get a higher refund than early the filers?

[@sejalparmar9409]

Very god information about hypotheses testing

[@HimanshuKumar-mc6md]

Calculated value of z is incorrect, although it is less than the critical value. So, your decision is correct.

[@jatinsharma3496]

well done taliya honi chahiye

[@jawadsadikkhan4097]

isn't variance=sigma^2 ? Then sigma should be variance^1/2..... shouldn't it?.......... By the way thanks for such a clear and effective explanation.

[@umangagrawal5195]

Bro, you cannot accept the Null hypothesis; Either you can reject or not reject.

[@iqrabatool5768]

Calculation karna ka method b btao bhi '6.2-5.4/10.24/underroot 50 kasa 1.77kasa niklta hn.very nice lecture

[@twowheeltraveler2484]

sir standard daviation lena hoga variance ki jagha and t tail test me alpha/2 karenge

[@mandanbhaivarotariya1029]

Very useful information Thank you

[@yagneshpadvi3224]

Very informative session on hypothesis testing.

[@roshanithavani5674]

Your video is wonderful...can u give example on survey question how to create hypothesis and make a test

[@boostmedia735]

Easy to start learning and T test.

[@liveforkillarpit]

Congtaulations for 1 milllion

[@mentalhealthandphysicalhea9576]

Psychology may statistic parh rahi hon ,,ap ny bhot acha samjhya

[@lubnaashiq4149]

A researcher conducted a research that majority of people die durnig pandemic bought a new phone during last year.if his assumption is correct which statistical test should be appropriate to analyze the data??

[@akshaybhisikar3379]

Mera project hai usme gold and eqity me se best investment option konsa hai o choose karna hai.... To Esme konsa test lagega.... Pls batao sir🙏

[@viral_video_ayana]

🙏 thankyou bhaiya God bless you all

[@palalkshah2814]

Nice information with easy example

[@rishabsrivastava1489]

Can you clear the denominator part is S. D Or variance??

[@vvkwadhwa]

Too Gud explaination. Thanks a lot.

[@Lastmomenttuitions]

Your welcome vivek

[@shabnamparween3060]

Hypothesis me universe finite or infinite kya होता है?

[@hitpatel985]

good level of the speech.. im live in aus and easy to understanding of the method keep it up bro....

[@saketdhami]

Bro you better learn to see some English tutorial first as it should I live in aus not i m live in aus

[@surbhiagrawal4463]

Sir meri 100 student ke sample pr t-value 2.17 aa rahi hai. Jo 100 pr level of significance ke. 05 and. 01 level kisi value 1.98 and 2.63 ke beeche me lie kr rahi hai. To sir is condition me null hypothesis select hogi ya reject. Please bataye.

[@chiraggupta1186]

Thank you bro so much today is my probality and statistics exam and this really going to help me

[@mdshohag8080]

This video is so much effective thanks but at the same time I wanna know about one tailed & two tailed,, I am not clear about it,,, please clear me one tailed & two tailed,,, please

[@deekshithgowda8079]

How to find whether we should put z test or F test or Chi square test?

[@miliris6276]

It's a two tailed test ... that would be alpha/2( 0.025) instead of alpha(0.05) .

[@Anusripd09]

Can any one Share more questions on this topic plz nd suggested some more video on this topic

[@anandmaurya9629]

Well explained you cleared my doubt brother thanks alot

[@damoryogesh9433]

Very impressive information sir

[@khalidhussainansari2970]

Well explained in a simple way