STA 2023 Lecture Notes - Lecture 32: Null Hypothesis, Statistical Parameter, Statistical Hypothesis Testing
Document Summary
Researchers are interested in answering many types of questions. These types of questions can be addressed through statistical hypothesis testing, which is a decision-making process for evaluating claims about a population. Three methods used to test hypothesis: the traditional method, the p-value method, the confidence interval method. Section 8. 1 steps in hypothesis testing- p-value method. A statistical hypothesis is a conjecture about a population parameter. The alternative hypothesis, symbolized by h1, is a statistical hypothesis that states the existence of a difference between a parameter and a specific value, or states that there is a difference between two parameters. A medical researcher is interested in finding out whether a new medication will have any undesirable side effects. The researcher is particularly concerned with the pulse rate of the patients who take the medication. The researcher knows that the mean pulse rate for population under study is 82 beats per minute.
