Does spam affect everyone equally

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Q. Spam is the price we pay to be capable of easily communicating using e-mail. Does spam affect everyone equally? In a preliminary study, university professors, administrators and students were randomly sampled. Each person was count the number of spam messages received that day. The results follow. Can we infer at 2.5% significance level that differing university communities differ in the amount of spam they receive in their e-mails?

Reference no: EM1398819

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