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A survey by the Pew Internet & American Life Project found that 21% of workers with an e-mail account at work say they are getting more spam than a year ago. Suppose a large multinational company, after implementing a policy to combat spam, asked 198 randomly selected employees with e-mail accounts at work whether they are receiving more spam today than they did a year ago. The results of the survey are in the file Spam. At the 0.025 level of significance, can the company conclude that the percentage of its employees receiving more spam than a year ago is smaller than that found by the Pew study? |
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