I am doing a research that requires me collecting and analyzing data samples in order to identify if there is correlation or no with respect to some parameter. I am looking for the best resources to study statistics and learn more about:
- What are the scientific methods for collecting samples to ensure that the sample is not biased.
- The significance of my results, i.e. are they significant or do not represent an actual correlation in the sample.
- Most important analysis to be conducted (e.g., confidence intervals).