Question 4 A company that manufactures travel goods is particularly concerned that the mean weight of the rollon cabin bags does not exceed 3 kg, as many airlines limit the weight of carry-on luggage on board to be 7 kg. Past experience allows the assumption that the standard deviation is 30 g. A sample of 50 cabin bags is selected and the sample mean is 3.009 kg. Using the or = 0.01 level of significance, is there evidence that the population mean weight of the cabin bags is greater than 3 kg