Amazon.com description: Product Description: A step-by-step guide for calculating the most common statistical procedures in user research using Excel or R. With over 100 examples pulled from the 2nd Edition of Quantifying the User Experience (Morgan-Kaufmann) we provide the reader with the right methods for comparing means and proportions, generating confidence intervals, finding the right sample size as well as many statistical procedures not available in common statistical packages. The procedures are relevant for small and large sample sizes.