PROBLEM 1. One of the two fire stations in a certain town responds to calls in t

Question

PROBLEM 1. One of the two fire stations in a certain town responds to calls in the northern half of the town, and the other fire station responds to calls in the southern half of the town. One of the town council members believes that the two fire stations have different mean response times. Response time is measured by the difference between the time an emergency call comes into the fire station and the time the first fire truck arrives at the scene of the fire Data were collected to investigate whether the council member's belief is correct. A random sample of 16 calls selected from the northern fire station had a mean response time of 4.3 minutes with a standard deviation of 3.2 minutes. A random sample of 8 calls selected from the southern fire station had a mean response time of 5.3 minutes with a standard deviation of 3.7 minutes 1. Construct and interpret a 95 percent confidence interval for the difference in mean response times between 2. Construct a 95 percent confidence interval assuming the population variances are equal. Interpret the 3. Does the confidence interval you've obtained supports the council member's belief? Explain. the two fire stations. Assume that population standard deviations are arbitrary difference with the answer in question 1

Explanation / Answer

Change in Ms or Md direction change in i 1. Ms rises so Ms curve shifts to the right falls 2. Md falls because demand for money falls due to low future investment.Md shifts to left falls 3. Md rises because people demand more cash to holdd shifts to right. rises 4. Ms falls because availability of credit falls.Ms shifts to left rises 5. Md shifts to the right.Disposable income of people rises because of lower taxes.People demand more money rises.

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