The Scottsdale fire department aims to respond to fire calls in 3 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 3 minutes 21 seconds provide sufficient evidence to show that the goal is not being met at= .01?

(a)Choose the appropriate hypotheses.

1. H₀: 3 min vsH₁:> 3 min, RejectH₀ifz_calc> 2.326
2. H₀: 3 min vsH₁:< 3 min, RejectH₀ifz_calc> 2.326

multiple choice 1

• a
• b

(b)Calculate the value of the test statistic.(Round your answer to 2 decimal places.)

z_calc

(c)Use Excel to find thep-value.(Round your answer to 4 decimal places.)

p-value

(d)If = .01, we would

Fail to reject the null hypothesis.rev: 10_09_2019_QC_CS-185091