Graduate students in SDSU to .. in the West Coast A sample perfectly represents the population? No! How likely the sample results represent the

Graduate students in SDSU to .. in the West Coast A sample perfectly represents the population? No! How likely the sample results represent the results that would occur in the population? Confidence interval Estimate of the probability that we are wrong when we say the results are due to chance There is no change, difference or relationship between A and B Does your study fail if your hypothesis is not supported by the data?