Question 1:

A company that makes car parts. The company control its production process by periodically taking a sample of 100 units from the production line. Each product is inspected for defective features. Control limits are developed using three standard deviations from the mean as the limit. During the last 12 samples taken, the proportion of defective items per sample was recorded as follows:

0.0

1

0.01

0.0

0.04

0.01

0.01

0.00

0.01

0.02

0.02

0.03

0.03

a. Determine the mean proportion defective, the UCL, and the LCL? (word count maximum:125)

b. Draw a control chart and plot each of the sample measurements on it? (word count maximum:75)

c. Does it appear that the process for making tees is in statistical control? (word count maximum:75)

Question 2:

A Chemical Company estimates the annual demand for a certain product as follows:

Week

1

2

3

4

5

6

Demand

649

524

561

738

511

590

a. Forecast the demand for week 7 using a five-period moving average? (word count maximum:75)

b. Forecast the demand for week 7 using a three-period weighted moving average. Use the following weights: W1 = .5, W2 = .3, W3 = .2.? (word count maximum:75)

c. Forecast the demand for week 7 using exponential smoothing. Use an α value of .1 and assume the forecast for week 6 was 602 units? (word count maximum:75)

d. What assumptions are made in each of the above forecasts? (word count maximum:125)

Assignment 2

Deadline: 19/03/2020 @ 23:59

Operations management

Instructions:

· : Students must mention question number clearly in their answer.

· Avoid plagiarism, the work should be in your own words, copying from students or other resources without proper referencing will result in ZERO marks. No exceptions.

· All answered must be typed using Times New Roman (size 12, double-spaced) font. No pictures containing text will be accepted and will be considered plagiarism).

· Students must mention question number clearly in their answer.

Assignment Question(s):

Question 1:

A company that makes car parts. The company control its production process by periodically taking a sample of 100 units from the production line. Each product is inspected for defective features. Control limits are developed using three standard deviations from the mean as the limit. During the last 12 samples taken, the proportion of defective items per sample was recorded as follows:

0.01

0.01

0.0

0.04

0.01

0.01

0.00

0.01

0.02

0.02

0.03

0.03

a. Determine the mean proportion defective, the UCL, and the LCL? (word count maximum:150)

b. Draw a control chart and plot each of the sample measurements on it? (word count maximum:100)

c. Does it appear that the process for making tees is in statistical control? (word count maximum:100)

Question 2:

A Chemical Company estimates the annual demand for a certain product as follows:

Week

1

2

3

4

5

6

Demand

649

524

561

738

511

590

a. Forecast the demand for week 7 using a five-period moving average? (word count maximum:100)

b. Forecast the demand for week 7 using a three-period weighted moving average. Use the following weights: W1 = .5, W2 = .3, W3 = .2.? (word count maximum:100)

c. Forecast the demand for week 7 using exponential smoothing. Use an α value of .1 and assume the forecast for week 6 was 602 units? (word count maximum:100)

d. What assumptions are made in each of the above forecasts? (word count maximum:150)

Assignment

2

Deadline:

1

9

/

03

/20

20

@ 23:59

Operations management

Instructions

:

·

:

Students must mention question number clearly in their answer.

·

Avoid plagiarism

, the work should be in

your own words

, copying from

students or other

resources without proper referencing will

result in

ZERO

marks. No exceptions.

·

All answered must be typed using

Times New Roman (size 12, double

–

spaced)

font.

No pictures containing text will

be accepted and will be

considered plagiarism).

·

Students

must

mention question number

clearly in their

answer

.

Assignment 2

Deadline: 19/03/2020 @ 23:59

Operations management

Instructions:

: Students must mention question number clearly in their answer.

Avoid plagiarism, the work should be in your own words, copying from

students or other resources without proper referencing will result in ZERO

marks. No exceptions.

All answered must be typed using Times New Roman (size 12, double-

spaced) font. No pictures containing text will be accepted and will be

considered plagiarism).

Students must mention question number clearly in their answer.