Biostatistics, RStudio, Twins, Diabetes, Statistical Analysis, Hypothesis Testing, Student t-test, Binomial Law, Normal Distribution
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This document provides a detailed analysis of biostatistics on RStudio, focusing on twins and diabetes data, including hypothesis testing and statistical modeling.
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[...] Biostatistics on RStudio - Twins and Diabetes Assignment Exercise 1. Question 1. After changing the current directory to facilitate data importation Question 2. Calculation of the two mean IQs using the function The mean IQ in foster family is above average. We are going to perform a Student's t-test to see if being in a biological family or a foster family has an impact on the child's IQ. Hypotheses: The mean difference of between the two groups is null : The average difference of is not null Test with (note: I added paired=TRUE because the data are paired) So we do not reject We can assert with a certainty of that both groups have similarities Question 3. [...]
[...] With a normal law of the same mean and the same standard deviation as the data set The two proportions are close, which means that the distribution of the BMI of the women in the group follows a normal law Question 8. With diabetes Without diabetes Question 9. Command So it is approximately Question 10. The size of the sample being large, we associate the draw with a draw with replacement Binomial law with parameters and On is almost sure to have at least 10 diabetic women chance) Question 11. [...]
[...] Student test to see if the of twins is close enough to Hypotheses: : On rejette The the average of twins is not in the average. It is lower than Question 7. Commande for data visualization. I have added the display of the equation line. Exercise 2. Question 1. No need to change the current directory as the duplicate files jumeaux.txt and diabete.txt are in the same folder Question 2. Command Question 3. Test binomial law There are women on in hypertension. The interval to is Question 4. [...]
