Null hypothesis | Volkig

Why is it Called the “Null”?

What is the null hypothesis?

Examples of the null hypothesis

An investigator can postulate a hypothesis:

Significance tests

Problems perceived with the null

Development of the null

Formulation of a null and alternative hypothesis

  • Assuming that a null hypothesis indicates that there is no cause and consequence relationship between a certain treatment that is being tested for being new and the decrease in the symptoms of a disease.
  • It could be said that according to the hypothesis, the new medicine does not generate the expected improvement in relation to the medicine that has been used up to now, which means that any improvement that occurs would be a fluke.
  • In order to verify and if the case should reject this hypothesis, a scientific study on the new treatment would have to be carried out. It is discovered that there is an effective cause and consequence relationship between the new medicine and the improvement of the patient’s disease, it can be shown that the hypothesis is totally false.
  • In the event that this occurs, an alternative hypothesis can be used, since it can be determined that the new medicine has given a better result than the previous one because it demonstrated good progress in the patient.

Null hypothesis vs. alternative hypothesis

Examples of hypotheses to be tested

Case 1: Null and alternative hypothesis.

Case 2: Null against alternative.

--

--

--

I am a Bangladeshi journalist and blogger. I complete my graduation From Stamford University of Bangladesh in journalism and media studies.

Love podcasts or audiobooks? Learn on the go with our new app.

Recommended from Medium

Power of the Sun

The 5 Types Of Ant To Watch Out For This Summer

Closeup of a Fire Ant

Biodegradability of Masks

Discovery Biology

Why Is Diabetes Causing Complications From Head To Foot? Science Explains.

Scanning Tunneling Microscope- Massive advances in nanoscience

The Long and Winding Road: A Discussion from ASHG on the State of Variant Assessment

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Gazi Md Rasel

Gazi Md Rasel

I am a Bangladeshi journalist and blogger. I complete my graduation From Stamford University of Bangladesh in journalism and media studies.

More from Medium

Why you should consider cluster-robust standard errors in panel and multilevel data analysis

Clustering

sample result of DBSCAN algorithm

Why do different classification matrixes exist: Confusion Matrix, Precision, Recall, and F1 Score

The Art of Statistics Ch.2 Summary