What is Hypothesis Testing – Explained in Simple Terms?

There are 2 ways to explain Hypothesis Testing – there’s the hard and fast truth, and then there’s the slow and subtle way.

Allow me to hit you first with the hard and fast truth, before I take it slow and subtle.

For the hard and fast truth, Investopedia defines hypothesis testing as:

Hypothesis testing is used to infer the result of a hypothesis performed on sample data from a larger population. The test tells the analyst whether or not his primary hypothesis is true. Statistical analysts test a hypothesis by measuring and examining a random sample of the population being analyzed.

Now if you got lost there somewhere in that complex explanation, that’s because it is complex.

Traditional Statisticians, Data Scientists, Mathematicians, and Lean Six Sigma practicioners tend to use a lot of jargon.

But the truth is, it’s just because they know what these terms mean and it’s just part of their vocabulary when they talk to each other.

But thankfully, for the uninitiated, as well as those who are still outside of the “statistically significant” circle, there’s a slow and subtle way to explain hypothesis testing.

Allow me to break it down for you in Simple terms and give you an example.

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TRUE or FALSE: Process Improvement Skills = Life Skills

When you live and breathe continuous process improvement, you’ll start to realize that it creeps into your life such that whatever you do, you’re trying to make it better.

You’ll find that you’re constantly looking to fix things that bug you.

You learn how to “see the waste” which are things that are being taught in the Lean Methodology under the acronym DOWNTIME:

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How to Reduce Underwriting Resubmits by Over 20% using Lean Six Sigma (Use Case)

Imagine a Financial Institution where in the Commercial Loan Group, it takes anywhere from 6 to 16 hours to put together a Loan Underwriting Package. Seems very tedious as it is already, right?

Now what if I told you that more than half (55%) of the submissions have to go back to the beginning of the process to be resubmitted and reworked once again, for whatever reason. Do you think it’s a healthy process?

Obviously not.

That’s exactly the situation that Tyson was facing when he started this Lean Six Sigma Black Belt Project.

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How to Innovate if you have a Traditional Product

If you’re a watch guy like me, then you will understand.

What’s one of the biggest problems a WIS will always have to face apart from picking the right watch for the occasion?

It’s picking the right strap.

And it always sucks when you find yourself in a situation where you have to get your wristwatch wet, but you’re wearing a leather strap.

This company recognized that problem and knew how to empathize with WIS like you, and designed a product that solves all your woes about getting a leather strap wet.

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