100% correct Answers Proctoring Enabled Quiz 2 MOS3330

TB TF Qu. 16-58 Camille owns Crunch Code, a com…

Camille owns Crunch Code, a company that provides quick programming solutions. Clients send projects to Crunch via their web page and a programmer develops the necessary code as quickly as possible. Camille has five programmers who do all of the coding. On average, a project arrives once every 4.8 hours with a standard deviation of 6.00 hours. Each project is assigned to one programmer and that programmer takes on average 19.2 hours to complete each project with a standard deviation of 19.2 hours.

How many uncompleted projects does Crunch Code have in the system on average at any given time? (Include projects waiting for a programmer as well as those being programmed.)Multiple Choice

12.56 projects
6.96 projects
3.45 projects
98.72 projects

TB MC Qu. 16-37 A server operates with 80% utilization….

A server operates with 80% utilization. The coefficient of variation for the service process is 0.5 and the coefficient of variation of the arrival process is 1. The average processing time is 3 minutes. What is the average time a customer spends in the system according to the single-server queue model?Multiple Choice

3.75 minutes
10.5 minutes
3 minutes
7.5 minutes

TB TF Qu. 16-20 Cranston Cranberry Cooperative (CCC) proc…

Cranston Cranberry Cooperative (CCC) processes cranberries that are harvested in the local area. Barrels of cranberries arrive on trucks to CCC’s facility at a rate of 150 barrels per hour and are processed continuously at a rate of 100 barrels per hour. Trucks arrive at a uniform rate over 8 hours, from 6:00 a.m. until 2:00 p.m. What is the maximum number of barrels of cranberries that are waiting on the trucks at any given time?Multiple Choice

100 barrels
Infinitely many barrels
200 barrels
400 barrels

TB MC Qu. 10-39 An ice cream stand sells…

An ice cream stand sells three different flavors of ice cream: vanilla, chocolate, and strawberry. Each gallon of vanilla costs $6.00 to purchase, each gallon of chocolate costs $6.50 to purchase, and each gallon of strawberry costs $7.00 to purchase. On average, the stand has 8 gallons of vanilla, 6 gallons of chocolate, and 4 gallons of strawberry in inventory and 1.5 days-of-supply. Each gallon of ice cream serves 16 customers, on average. What is the ice cream stand’s average daily cost of goods sold?Multiple Choice

$196.48
$172.50
$115.00
$76.67

TB MC Qu. 11-65 Store B orders on a weekly…

Store B orders on a weekly basis. Its weekly demand is 50 units with a standard deviation of five units. The holding cost is $10 per unit per week and a 0.99 in-stock probability is desired. What is Store B’s weekly inventory holding cost if lead time is two weeks?Multiple Choice

$1,000.00
$24.04
$1,201.78
$120.18

TB MC Qu. 11-73 A parts supply store orders…

A parts supply store orders a particular item on a weekly basis. The weekly demand is 30 units with a standard deviation of four units. The holding cost is $5 per unit per week and a 90% in-stock probability is desired. What is the store’s average holding cost incurred each week for the on-order inventory of this item if lead time is three weeks?Multiple Choice

$450.00
$90.00
$150.00
$900.00

TB MC Qu. 12-62 Firm B’s demand for a product…

Firm B’s demand for a product is 10 units per month. Its supplier charges an ordering cost of $5 per order and $10 per unit with a 10% discount for orders of 25 units or higher. Firm B incurs a 30% annual holding cost. What is the optimal order quantity for Firm B?Multiple Choice

21
25Correct
22
20

TB MC Qu. 12-67 Firm A’s demand for a product…

Firm A’s demand for a product is 15 units per month. Its supplier charges an ordering cost of $5 per order and $10 per unit with a 10% discount for orders of 15 units or higher. Firm A incurs a 25% annual holding cost. Firm A orders at a quantity of 28 units. What is its total annual cost, including purchasing cost (round to the nearest dollar)?Multiple Choice

$1,256
$1,260
$1,684
$1,620

TB MC Qu. 08-55 Daily demand for a product is 1200 units…

Daily demand for a product is 1200 units. The production lead time is 3 hours. A 1-hour safety stock is kept. How many kanban containers are needed if one container holds 24 units and the process operates 10 hours per day?Multiple Choice

TB MC Qu. 08-51 What is the relationship between the…

What is the relationship between the number of kanban cards in a process and the inventory level?Multiple Choice

The inventory of the process grows with the square root of the number of kanban cards.
There is no relationship between kanban cards and inventory levels.
There is no more inventory in the process than was authorized via kanban cards.
The inventory of the process is reduced by adding more kanban cards.

TB MC Qu. 09-18 A jar-filling process has a lower…

A jar-filling process has a lower specification limit of 9.5 oz. and an upper specification of 10.5 oz. The standard deviation is 0.5 oz. and the mean is 10 oz. Which value comes closest to the standard deviation required in this process to achieve a ppm of 5000?Multiple Choice

0.17
0.32
0.20
0.24

TB MC Qu. 09-24 A key joint in a precision machining process…

A key joint in a precision machining process has a lower specification limit of a width of 0.99 mm and an upper specification limit of 1.01 mm. The standard deviation is 0.005 mm and the mean is 1 mm. The company wants to reduce its defect probability and operate a “six sigma process.” To what level would this company have to reduce the standard deviation in the process to meet this target?Multiple Choice

0.000001
0.00001
0.00017
0.0017

Solution

How many uncompleted projects does Crunch Code have in the system on average at any given time? (Include projects waiting for a programmer as well as those being programmed.)

TB MC Qu. 16-37 A server operates with 80% utilization….

Multiple Choice

3.75 minutes
10.5 minutes
3 minutes
7.5 minutes

Answer in steps:

To calculate the average time a customer spends in the system using the single-server queue model, we can apply the Kingman’s formula, which estimates the average time TTT in the system for an M/G/1 queue (general service time distribution, single server):