Problem 1: Within psychology, the most common standard for p-values is "p < .05". What this means is that there is less than a 5% probability that the results happened just by random chance, and therefore a 95% probability that the results reflect a meaningful pattern in human psychology. We call this ___________?
Problem 2: In the text, and in the example of infants choosing to play with the helper toy over the hinderer toy, what does the p-value tell you?
Problem 3: Define Distribution.
Problem 4: Define Population.