###### Question:

The manufacturer of an airport baggage scanning machine claims it can handle an average of 530 bags per hour. (a) At α=.05 in a left-tailed test, would a sample of 16randomly chosen hours with mean of 510 and a standard deviation of 50 indicate that the manufacturer's claim is overstated? (b) Why might the assubption of a normalpopulation be doubtful?

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