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Spam A researcher reported that 71 8 of all email sent in a recent month...

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Spam A researcher reported that 71 8 of all email sent in a recent month was spam A system manager at a large corporation believes that the percentage at his company may be 78 He examines a random sample of 500 emails received at an email server and finds that 370 of the messages are spam Can you conclude that the percentage of emails that are spam is less than 78 Use both a 0 01 and a 0 05 levels of significance and the P value method with the TI 84 Plus calculator Part 0 5 Part 1 of 5 a State the appropriate null and alternate hypotheses Ho H This hypotheses test is a Choose one test right tailed D X P S

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