Solve the below:
Q: The manufacturer of an airport baggage scanning machine claims it can handle an average of 530 bags per hour.
(a) At ± = .05 in a left-tailed test, would a sample of 16 randomly chosen hours with a mean of 510 and a standard deviation of 50 indicate that the manufacturer's claim is overstated?
(b) Why might the assumption of a normal population be doubtful? (See Aviation Week and Space Technology 162, no. 4