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A fire department aims to respond to fire calls in 4

A fire department aims to respond to fire calls in 4 minutes or less, on average. Response times are normally distributed with a standard deviation of 1 minute. Would a sample of 18 fire calls with a mean response time of 4 minutes 30 seconds provide sufficient evidence to show that the goal is not being met at α = 0.01? (use both methods)

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Basic Statistics: A fire department aims to respond to fire calls in 4

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