A management scientist believes that one way of judging whether a computer came equipped with enough memory is to determine the age of the computer. In a preliminary study, random samples of computer users were asked to identify the brand of computer and its age (in months). The categorized responses are shown here. Do these data provide sufficient evidence to conclude that there are differences in age between the computer brands?

(Use α =.05.)

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IBM Dell Hewlett-Packard Other 17 10 13 8 4 21 15 8 24 12 15