Hypothesis Testing 03: Example 1 

I almost cried when I watch this, I don't get how my professor explains coz he's just reading the book. I finally know how to create critical region T^T I almost cried because I can't move on with the problem without it. Thank you very much.

The whole afternoon trying to make sense of this and you solve everything in 10 minutes. Thanks!

Like if you're studying for final and on the verge of tears like me

Thanks much Rahul.I really understood this concept only after seeing your video with an example, having been out of touch with Math for the last 20 years.Thanks a lot.

thanks you saved my life, got a test tmr

thank you so much for putting it so concise and clear!! I really like the way you have explained.

Very good video! only question is that i believe the yellow region to be equivalent to 96.6% rather than 98.3%, as the value on the table refers to a 1 tailed area. Am I wrong?

You made this so easy to understand. thanks.

Mr. Rahul Patwari, Thank you very much for presenting a beautiful, descriptive and clear to understand the subject to any one with little or basic of statistic, myself, and it is so clear. I have taken several classes on this very subject even in my Green Belt program, nothing was clear like this as you demonstrated. Your talent in demonstration is very much appreciated. I have few questions for you. I have noticed demonstrations in RU-vid and the points of discussion were or are mostly related to, age, height, rainfall, earthquake, drugs etc. Is this applicable in the real engineering field like, Design engineering, manufacturing and so on. I am encountering with the issues without any data, can I use this approach to prove the worthiness (quality) of the final product and how? This is what I got from Google search: "A statistical hypothesis is an assumption about a population parameter. This assumption may or may not be true. Hypothesis testing refers to the formal procedures used by statisticians to accept or reject statistical hypotheses". Is it true? Thank you in advance. Bob Matthew

THANK YOU SO MUCH! May god bless you. so fun to wacth your tutorial.

This was so helpful, thanks!

Thank you so much for sharing such a great explanation!

Thank you, simply simple.

learning seems easy with econometric class when I study with your tutorials. Thank you so much,.. But our teacher gave us six steps, with one having to find critical value for the test statistics, kindly elaborate that

thank you! you made difficult things become easy!

That was awesome! could you do one with binominal distribution?

Thanks. Very useful overview

I think you meant to tell the guy that he was not right. Since we are never really sure he is wrong or not. But great video! I am ready for the exam!

He shows it complicated just like my teacher I have seen simpler and easier to see

Very very very helpful, thank you for the explanation

I hope someone can help me with this. I cant understand what my lecturer had been teaching and I really need help. 30 women hv anemia in pregnancy & 15 of them hv history of malaria. 90 hv normal hb lvl pregnancy & 20 of them hv history of malaria a) state the research hypothesis and null hypothesis b) draw contigency table and suggest a statistical test for testing the null hypothesis. calculate degree of freedom c) carry out your proposed test and comment whether rejecting or not rejecting the hypothesis at a=0.05

beautiful explanation, tysm!

Tnx so much!

thanks a lot! you really explain it well :)

thank you for that wounderful presentaion and can i indly have the link to the P value lectures only

I think you made a little mistake at the end. When you took 0.9826 for the yellow shaded area, it contains the right side of the pink area too. So you should do 0.9826-0.0174 to find the yellow area. But thank you, it was a really good video though.

Super helpful thank you!

superb

Thank you Rahul :-)

thank you it was amazing, very clear and fun :D

great Job!

Thanks a lot for the video. I am not a statistician, so I have this question: Why do we make the assumption for the Variance to be equal to 20?

something doesn't seem right to me regarding the very last part of the 98.30%. Isn't it representing the whole area on the left-hand side the z=2.12? I think the area of less than -2.12 and greater than 2.12 are 1.7% for each area. Any idea guys?

what are the specific steps to calculate the problem with a calculator? Thanks

this is very very helpfull sir

Thank you so much :)

I did not understand how we find the P value, did I missed calculation of this or isnt it explained ??

great.thanks

thanks but i afraid if i cannot determine the data.. can u help me.

please help I am done with dis part, am moving to uniformly most powerful test and that is where I got serious problems

with the normal distribution, do we always construct a confidence interval? When do we construct a CI with hypothesis testing?

a great men...thanku

thanks

A fitness magazine claims that the mean cost of yoga session is No more than #14. Find that a random sample of 29 yoga sessions has a mean cost of 15.59 and standard dev of 2.60 at a level of significance of 2.5 do u have enough evidence to reject. So is the 2.5 the alpha?

many thanks. :-)

Can we assume that any z score below or above 1.96 will be rejected considering the significance level of 5%?

good

Can you clearly state the steps for identifying the claims. I have problem there

i mean how can we know the hypothesized mean

how can know the hypothesized mean

thank you but could you tell me how you got p-value?

WP

shouldn't we use t-statistic for small sample sizes?

Nice accent...

thanks