A random sample of 1562 undergraduates enrolled in marketing course was asked to respond on a scale 1 (strongly disagree) to seven (strongly agree) to the proposition: " Advertising helps raise our standard of living". The sample mean response was 4.27 and the standard deviation was 1.32. Test the mean response for all undergraduates is different to 4. Hypotheses for this situation are Expression for test stats with appropriate numbers and the value are The conclusion of the hypothesis Choose... testing is