hypothesis testing of difference between two mean large sample when to use z-test part 4

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Excellent videos ...they came as a saviour for me just before my exams. And sir has explained everything so beautifully and technically...thank you very much 😊😊

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sir may god bless you i am just very thankful to god that i came to know about your videos they are osm and you cleared my all concept , you are the defination of perfection in teaching loving your videos

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@@GouravManjrekar you know what sir now you dont have to tell me that i should watch your all videos because i am already in love with your videos and i am watching all your videos i watched all z and t distribution videos now i am at f distribution .then i am gonna watch your rest stat video also like chi square n all because you are an osm teacher and i wanna learn whole statistic from you. thankyou for making this videos and i shared your videos to my frnds too.

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Sir , ur examples are always perfect as per the concept... Makes understanding vry easy... Thankyou for this video 😊

[@GouravManjrekar]

ua-cam.com/video/c8BGEmHFtCQ/v-deo.html watch also two sample t test for independent sample..

[@bhargavkakadiya3499]

Sir you are great.🙏 because any faculty not teach this topic better but you teach very nice.

[@GouravManjrekar]

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Excellent ! Very nice explanation 👍
Best video on UA-cam 👏🙏

[@nirupoma9533]

Your explanation is extremely easy and helpful for me, after watching your video my concept on hypothesis testing is crystal clear.Thanks a zillion for such video,Love from Bangladesh ❣️

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Very excellently explained in all videos

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Nice Content

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Nice explanation 👌 👍

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Awesome sir..
It helped me so much

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you are a great teacher😄

[@lakshaysharma6390]

Very great understanding I got from your video sir Thank You Sir 🙏🙏🌟🙏🙏
Also same question is there in my exam Thank You Very Much Sir 🙏🙏🌟🙏🙏

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Love from Pakistan 😍💚🇵🇰😍

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Your explanation is extremely easy and helpful for me 💓 thanks allot

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I was able to solve majority problems with the help of this video lecture... Thankyou!

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Thank you so much sir g mjy bht achy s smj AA gya U are a great person sr g ❤ap bht acha smjhty hn biostatistics ko

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@@GouravManjrekar sr g ap K lectures probability chapter py hn ????

[@GouravManjrekar]

Yes please watch
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@@GouravManjrekar ok sir thank you so much 😍

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he's such an excellent teacher.
every step is crystal clear.
I have been binge-watching his videos all day long.

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Sir ut classes are superb... I'm enjoying statistics
Tysm sir❤

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Sir please provide the videos of test of significance of attributes..and your teaching style is so helpful ..thanks a lot

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Mother's day? 😭

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I Understand your teaching very Easily Sir

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Kya padhte ho sir lajawab hai apka ❤

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Very nicely explained , I'd many confusion .. all are clear now

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Very clear explanation!!

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Thank you so much sir for making this tough topic easy for us through such a grt explanatory videos.

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Very important topic covered by sir.. Thanks a lot sir

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Most welcome

[@GouravManjrekar]

Student t distribution and when to use t test and z test
ua-cam.com/video/TIc9Sj5Mx4c/v-deo.html

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Excellent .........best of luck

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Very helpful🙏🙏🙏

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💫sir your videos help me for my exam preparation so thank you so much 😊👌🏻👍🏻

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Very helpful 😃

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Quite helpful... thanks Sir

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explained Very well sir.

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VERY VERY GOOD, LOTS OF LOVE TO YOU SIR, THANK YOU

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Very very nice sir.

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Studying just before 2 hours of exams🙃

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Studying before 1 hour

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Lovely day with your lecture sir.

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@@GouravManjrekar I love it. I completed the series testing of hypothesis. I have learned a lot from you. thank you so much brother.

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Very helpful sir

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god bless you sir

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Thanks 👍

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[@brijrajsinhraolji1216]

Sir in this first eg. you took null hypothesis as their is no significant difference, but we can even take it as H0 = their is a significant difference.
If done so then results would be different. Then how to deal with this??

[@arindamchakraborty7024]

Sir kindly make a video on Gaussian distribution and error in measurements and their effect on data set

[@dhruvladdha7956]

Amazing explanation sir.....
but..In one book i have seen the formula of Z test was different.
z = (X1 bar - X2 bar) - ( Mu1- Mu2)
________________________________
delta √1/n1 + 1/n2
So, I am confused that mu1-mu2 has any importance in this formula ?

[@GouravManjrekar]

That will be zero so no problem

[@dhruvladdha7956]

ok sir. Thank you👍🏻

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[@somobrataghosh2484]

Hi sir, can u please explain how did u calculate critical value z alpha?

[@fit_tubes_365]

Thanks

[@theanontayba8946]

Sir in the last question the null hypothesis will be accepted know because it is -5.16 which is smaller than 1.96

[@mohammadaslam5815]

Sir how we said......in question no 1.... it is sample's standard deviation *not population's standard deviation...*

[@harshigarg5940]

Thank you sir

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[@simunsamikshyadash]

Again thank u sir... In question no 2...under null hypothesis, can't we write sigma1 = sigma 2, rather than mu1=mu2..

[@ankitrai1441]

Please Suggest best book for hypothesis testing

[@belalansari9195]

Jl devore

[@neerajgaur4998]

Hello Sir, Can You Also Make a Lecture On Central Limit Theorem and Also If You Can Make A Video On How To Find Out Variables in These Questions Like Sometime it's very difficult to find out if the Deviation is of Population or From the Mean.

[@GouravManjrekar]

sure
f test numerical video link ua-cam.com/video/nfbExOGWAS0/v-deo.html
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[@bandaribunny7845]

Sir ur vedios are very helpful 🙂🙂thanku sir🙏🙏... Would you please make a vedio on test of hypothesis concerning one proportion and different proportions on large samples sir...

[@suzytamio3389]

A survey found that the average hotel room rate in Luzon is ₱2,400 and the average room rate in Mindanao is ₱2,200. Assume that the data were obtained from two samples of 75 hotels in Luzon and 80 hotels in Mindanao and the standard deviations were ₱250 and ₱215, respectively. At , can it be concluded that there is a significant difference in the rates?
Can you helpme with this sample. Thanks 😊

[@manashisarkhel5523]

Salute

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[@KishanKumar-og4ym]

can we write x1 =x2 in null hypothesis assumption in place of mu1 =mu2

[@richa8459]

is there any playlist for the all the hypothesis testing videos?

[@GouravManjrekar]

Yes
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[@sarthakagarwal31]

Sir, I have a doubt. When we use Z test -don't we need to find the final value of "z" using Normal distribution table(Z-table)?

[@GouravManjrekar]

We are taking many sample from same population and it form sampling distribution of mean and We standardize using standard normal distribution

[@robinsorela]

Sir what if one sample is less than 30 and other is more than 30 , then which test to apply in such case ?

[@prafulnargaya224]

At 23:54 the value of Z alpha is 0.516 not 5.16
So it is accepted not rejected.
0.516

[@sagarsalvi3687]

No buddy.. The value of z alpha is according to table which is 1.96 and calculated z is 5.16
i.e 5.16 >.96
So we reject Ho (Null hypothesis)
May you understand....😊

[@syedfareeda473]

Critcll valve ? Huw com 2.84?

[@tiwariP20]

Sir agr hame critical value n yad rhe to question m given rhega n??

[@GouravManjrekar]

It may be

[@lovedua6269]

any example of left tailed test ?

[@shreyaSingh-ci4yd]

Thanku sir

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[@ahmadbilalsheikh4387]

Please brief the steps to calculate the critical value of Z. If significance level is 2%.

[@GouravManjrekar]

See standard normal distribution table value at 2% LOS.
Hope this will help you...

[@Tanmoyee]

Sir what is Degree of Freedom?? Can u plz explain

[@GouravManjrekar]

Number of independent variate in observation is called degree of freedom.

[@malikhasnat7588]

Plz sir short video banaya kara

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Please tell.
When to use two tail and one tail.

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Watch below video
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[@koyalsharma2000]

Sir plz populations proportion pe bhi ek video bna do plz sir

[@GouravManjrekar]

Sure
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🔥

[@NipunRawat08]

sie exam se mai to diagram nahi banenge na?

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Unless not asked.
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☺☺☺

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Please use a dark marker

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Sir ap ki uplode ki hai videos ki awaz bhtt kam hai,🥺

[@GouravManjrekar]

Testing of Hypothesis: ua-cam.com/play/PLRNL7AjA6rjy_ryWXKMil8CjtLQjUiy0I.html

[@deepakjaiswal407]

why first video is not visible???

[@GouravManjrekar]

Now check
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[@_SanikaJadhav]

If significance value will be not given then.....

[@GouravManjrekar]

You need to assume 5% Level of significance and need to remember value.
Check my first video on Hypothesis testing full Concept
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[@funnyshort6215]

thank you sir

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