Statistical Significance

Most of us are taught Testing of Hypothesis using the old Null Hypothesis approach. In fact, In Indian Schools, it is de-rigor to know the statistical testing using the Null Hypothesis Approach. However, statistical software do not follow this approach, rather they follow the p-value approach. This creates confusion when students use statistical software foe their work.

To help my students I downloaded the following picture from the Internet. It beautifully illustrates the methods for both the approach. I hope that this will help the students of statistics in India.



PS: I downloaded the above file from the Internet. If you come across the original please let me know so that I can acknowledge the original

Comments

Post a Comment

Popular posts from this blog

Durga Puja

Another Durga Puja finished on the 2nd of October. Every year, I cannot help, but marvel at the time, money and energy that is expended in making the function a success. Most of the times I think that the whole thing is a complete waste. Consider for example. In the city of Calcutta itself around 2800 Durga Pujas (CESC Estimate) are held. Each Puja Comittee spends a tidy sum every year. For the sake of ease of calculation, if we assume that every comittee has a budget of Rs. 10000/- only, then the total expense on Durga Puja - just on conducting the Puja - comes to a staggering Rs. 28,000,000 or simply put Rs. 28 million. This is an extremely conservative estimate as because most pujas have budgets that run into a few hundred thousand of rupees. This also does not include the expenses incurred by a family on Puja shopping. Just imagine, if Rs. 28 million was spent on some project or some socially beneficial work. Calcutta could in my opinion become the best city of the world. Perhaps i
Read more

Xavier Institute of Social Service

Sorry for the delay folks... I joined Xavier Institute of Social Service (XISS), Ranchi as Reader in their Department of Marketing and Finance from 1st of August 2006. First Impressions about Ranchi - Difficult to say, it feels like a small town thrust into the spotlight since Jahrkhand became a state. But yes the weather is good and distances are small - compared to Kolkata. So my next blogs would be from Ranchi.
Read more

F117 Aircraft Identification Matrix

Image
Whew! After almost 4 years of relentless searching on the Internet and other places, I finally found the piece of image which is worth its weight in Gold. Well maybe not for everyone - but for us the die-hard Microprose Flight Sim Fans. Have been flying their Sims  of F19 Stealth Fighter since about 1992-93 and have had the F117 since about 1996 but I lost their manuals etc. It is a different matter that these games are now so old that you need DOS Emulator to play properly - but what the heck. They are the best and will remain the best to me. Here is the Aircraft Identification Matrix Sheet. Hope it helps some of you to get back to the old game
Read more