Question 7 The Mechanical Foundation reports that the average cost of project maintenance is 24,226. To see if the avera
Posted: Wed Dec 08, 2021 5:00 am
Question 7 The Mechanical Foundation reports that the average cost of project maintenance is 24,226. To see if the average cost of maintenance is different at a particular project, a researcher select: a random sample of 37 projects and found that the average cost of their maintenance is 24,625. The standard deviation of the population is $2,043. Find the calculated value of Z in order to make a decision based on a given critical value (Use 3 decimals).