In the previous post, we explained how to calculate P-value and thus perform hypothesis testing for categorical data. In this post we will give an example. A study was performed to see if there is a difference between males and females who use cannabis regularly. The sample size was 134 , 51 Females and 83… Continue reading Proportion Test – Example

# Category: Statistics

## Proportion Test

The parameter of interest when we deal with categorical data is the sample proportion. An example of a sample proportion could be the proportion of people that are use cannabis. Imagine that we want to compare the proportion of males that are cannabis users to the proportion of females that cannabis users. Our two groups… Continue reading Proportion Test

## Null Hypothesis

Null hypothesis is effectively stating the default situation. It is as you said there is nothing going on. When some one puts forward a claim the null hypothesis is that this claim is not true and needs to be proven. When we are testing between a new claim and the null hypothesis, a null hypothesis… Continue reading Null Hypothesis