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Business, 23.04.2020 17:11 kutie543

A telemarketing company based in Utah has established a guideline stating that the average time for each completed call should be no more than 250 seconds. Recently the operations manager was concerned that calls were taking too long. The operations manager did not wish to assert that the calls were taking too long if the sample data did not strongly indicate this. A sample of 12 calls was selected and the following times (in seconds) were recorded. 194 278 302 140 245 234 268 208 302 190 320 255 Based on the sample data, develop appropriate null, and alternate hypothesis and perform the relevant hypothesis test.

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