Jeff is a server developer in designing databases and is responsible for ensuring the server’s stability, reliability, and performance. Several complaints have been received from the customer services department on the instability of the server. To address the complaints and provide a solution, Jeff starts to inspect the server by estimating the number of users as they are in wellorganized usage manner. He reported that the number of server users in a well-organized usage manner is in the range of 56 to 65 users. As stated in the records, the number of server users in a well-organized usage manner is approximately normally distributed with a mean of 58 and a standard deviation of 10.

a. Use Excel to determine the percentage of server users in a well-organized manner. Comment on your finding.

b. Jeff’s manager is unsatisfied with this report. He adjusted the mean to 60.5; determine the standard deviation value for 93% of the server users in a well-organized manner. Explain your findings.