Mathematics, 13.11.2019 19:31 awh1088

The scottsdale 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 = .01?

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