Question No.1:

Demand for a certain model of Camry car during the past 5 months is shown below:

Months(Time) Demand

January 195

February 265

March 315

April 295

May 105

Compute the forecast demand for each month, using single exponential smoothing with =

0.05 . Assuming that forecast for January is 220.

Question No.5:

The local Division of Motor Vehicles (DMV) is concerned with its waiting line system. Currently, the DMV uses a single server, when processing license renewals, based on historical evidence, the average number of cu

The local Division of Motor Vehicles (DMV) is concerned with its waiting line system. Currently, the DMV uses a single-server, single-line, single-phase system when processing license renewals. Based on historical evidence, the average number of customers arriving per hour is 21 and is described by a Poisson distribution. The service rate is 15 customers per hour with the service times following an exponential distribution. The customers are patient and come from an innite population. The manager of the DMV would like you to calculate the operational characteristics of the waiting line system.

(a) What is the average system utilization?

(b) What is the average number of customers in the system?

(c) What is the average number of customers waiting in line?

(d) What is the average time a customer spends in the system?

(e) What is the average time a customer spends waiting in line?

Pleases Answer Two Question because must send today ...... Thanks alot