5. The following are the packaging times from two shipping machines (in seconds per shipment): Machine A 42.1 41.3 42.4 43.2 41.8 41.0 41.8 42.8 42.3 42.7 Machine B 42.7 43.8 42.5 43.1 44.0 43.6 43.3 43.5 41.7 44.1 Assuming these data represent random samples from normal populations, examine the hypothesis of equal variances. Clearly state all the elements of the test, including your conclusion and its justification.