AN emergency team responds to calls in a mean time of 8.4 minutes with a standard deviation of . If a sample of 18 calls with a new system generates...
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AN emergency team responds to calls in a mean time of 8.4 minutes with a

standard deviation of .7. If a sample of 18 calls with a new system generates a mean time of 7.8 minutes, test level .05 level. State the hypotheses, identify the claim, find the critical value, compute test value, make the decision, summarize the results.

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Hypotheses: H 0 : =... View the full answer

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