Assignment:
Comparing the attitudes of customers at three restaurants, a researcher selects a random sample of customers from each and asks each person to rate the restaurant on a scale of 50 to 100, with 50 = “poor” and 100 = “excellent.” Using the 0.05 level of significance, examine whether the population median customer ratings for the three restaurants could be the same. Identify and interpret the p-value for the test.
Provide complete and step by step solution for the question and show calculations and use formulas.