hypothesis
# What is hypothesis?
A hypothesis is a concept that is not yet verified, but if true would explain certain facts or phenomena
# What is hypothesis testing?
It is an educated guess about something in the world around you. It should be testable, either by experiment or observation.
In hypothesis testing, we have to make two hypotheses i.e Null hypothesis and the alternative hypothesis
# Null Hypothesis
The null hypothesis is the one that states that sample observations result purely from change.
# Alternative Hypothesis
The alternative hypothesis challenges the null hypothesis and is basically a hypothesis that the researcher believes to be true.
# Two types of error in hypothesis testing
# Type I error
We reject the null hypothesis when it is true
That is we accept the variant B when it is not performing better than A
# Type II error
We failed to reject the null hypothesis when it is false