What is inferential statistics and how is it used?

What is inferential statistics and how is it used?

Inferential statistics is a branch of statistics that allows us to make inferences about a population based on a sample. It's used to estimate population parameters, test hypotheses, and make predictions.

Can you give me an example of how it's applied in real life?

Sure! For instance, in medical research, inferential statistics is used to determine if a new drug is effective by analyzing data from a sample of patients.

What are some common methods used in inferential statistics?

Common methods include hypothesis testing, confidence intervals, and regression analysis. Each helps in making predictions or decisions based on sample data.

How do I choose the right statistical test for my data?

Choosing the right test depends on your data type, distribution, and research question. For example, use t-tests for comparing means and chi-square tests for categorical data.