# Hypothesis Testing

Introduction

Hypothesis testing is a process of evaluating how plausible is one of two competing hypotheses, based on data collected. The two competing hypotheses are usually denoted by

*H*(The null hypothesis) and_{0 }*H*(the alternative hypothesis). The P-value or Observed Significance Level is often use to asses the validity of the_{1}*H*_{0}_{.}It is the probability, assuming that H_{0}is true that the test statistic would have a have value whose disagreement with H0 is as great or greater than the one actually observed.The steps in testing two competing hypotheses

*H*_{0}*and**H*for a population mean are as follows:_{1}Applications