Chiocabulary Investigation

Math is playing an important role in our life in different areas. This task is aimed to investigate how chi-squared test is used in the area of medical science. The reason I choose this task is that I studied chi-squared test in class and have interest in this topic and I would like to find out what other use does it have. An example of how to use chi-squared test to find out the way to cure a disease will be given to analyze the mathematical process of chi-squared test. In the stage of investigating, research skills will be used. I will investigate how chi-squared test is used in medical and choose one case that is suitable for the internal assessment. Calculating skills will be used in the calculation section. My planning is that, I will introduce what a chi-squared test is and what it is mainly used for in the area of medical science. Then, I will then briefly introduce the disease peptic ulcer which will be investigated in the internal assessment. Then I will collect some data from the internet and study the rate of heal and different treatments of a selection of peptic ulcer patients who have similar symptoms to prove rate of heal is dependent on treatments. To do this, I will conduct a chi-squared (χ2) test and establish two hypotheses: the null hypothesis, that the two factors, rate of heal and …show more content…
The significance level is a measure of how certain we want to be about our results. Low significance level leads to a low probability that the experimental results happened by chance and high significance level leads to a high probability that the experimental results happened by chance. Usually a significance level of 5% is used by the scientists, written in decimal as 0.05. Because this means that the results reached this significance level will have at most a 5% chance being reproduced in a random sampling process. Follow the convention and set the significance level at