# What is a hypothesis simply explained?

## What is a hypothesis simply explained?

A hypothesis (from ancient Greek hypthesis, late Latin hypothesis, literally assumption’) is (since Newton) an assumption (causa ficta) formulated in the form of a logical statement, the validity of which has not been proven or verified, but is suitable for explaining phenomena.

## When is h0 accepted?

Accepting or rejecting H0 does not mean that H0 is true or false, just that that decision was the most expedient in the circumstances. One chooses what one suspects or wants to have confirmed as the alternative hypothesis, and what one wants to reject as the null hypothesis.

## When is a hypothesis confirmed?

A hypothesis is confirmed or disproved by its observable consequences. If the observable consequences occur, then a hypothesis is considered (partially) confirmed; otherwise disproved.

## When is a value significant?

That means: If the probability that a result came about by chance is less than 5%, it is considered “significant” (p

## Is 0 05 still significant?

At α 0.05 one speaks of a significant result in statistics. At α 0.01, the result is considered very significant.

## What does P Value say?

The p-value (according to RA Fisher), also called probability of being exceeded or significance value (p for Latin probabilitas = probability), is in statistics and especially in test theory an evidence measure for the credibility of the null hypothesis, which often states that a certain…

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