You’ll find here some R notebooks I made to remind me of good practices in statistical analysis, data manipulation and data visualization. I share them in the hope that they will be useful to you too, fellow apprentice statistician.
AttrakDiff data generation and analysis
How to analyze AttrakDiff data?
Standardized questionnaire, Data generation, Confidence intervals
Association between two independent nominal variables
Is there an association between two nominal variables?
Pearson’s Chi-squared test, Fisher’s Exact Test
Distribution follows a theoretical distribution
Is the distribution of subjects in different categories faithful to a theoretical distribution?
Chi-squared test for given probabilities
Mean differ from a value
Does the population mean or median differ from a predefined value?
One Sample t-test, Wilcoxon signed rank test
Means differ in two independant groups
Do these two groups differ?
Two Sample t-test, Welch Two Sample t-test
Means differ in two paired groups
Is this treatment effective?
Paired t-test, Wilcoxon signed rank test