Posts

Showing posts from November, 2020

Hypothesis Testing

Image
  What is hypothesis testing ? It’s a statistical method that is used in making statistical decisions using experimental data. Hypothesis Testing is basically an assumption that we make about the population parameter Ex : you say avg student in class is 40 or a boy is taller than girls. all those example we assume need some statistic way to prove those. we need some mathematical conclusion what ever we are assuming is true. 1.            Why do we use it ? A  hypothesis test  evaluates two mutually exclusive statements about a population to determine which statement is best supported by the sample data. When  we  say that a finding is statistically significant, it’s thanks to a  hypothesis test .       What are Basics of hypothesis? The basic of hypothesis is  normalisation  and  standard normalisation . all our hypothesis is revolve around basic of these 2 terms. concept of z-score c...