Show transcribed image text The Scotsdale fire department aims to respond to fire calls in 7 minutes or less, on average. Response times are normally distributed with a standard deviation of 1 minute 18 seconds. Would a sample of 18 fire calls with a mean response time of 7 minutes 19 seconds provide sufficient evidence to show that the goal is not being met at α= .01 ? (a) Choosc the appropriate hypotheses. a H0 μ s7min vs Hf μ > 7 min. Reject H0 if zcale*2326 b, H0 μ z 7 min vs H+p
The Scotsdale fire department aims to respond to fire calls in 7 minutes or less, on average. Response times are normally distributed with a standard deviation of 1 minute 18 seconds. Would a sample of 18 fire calls with a mean response time of 7 minutes 19 seconds provide sufficient evidence to show that the goal is not being met at α= .01 ? (a) Choosc the appropriate hypotheses. a H0 μ s7min vs Hf μ > 7 min. Reject H0 if zcale*2326 b, H0 μ z 7 min vs H+p
