Stats

Brief Summary:-

Different types of control charts are being used to understand the quality control methods used by the company. In the report below, the description is mainly about the P-chart, ¯x-chart and R-chart along with some of the tables and graph. Discussion about the problems and their solutions. Recommendation of the suitable chart for the company.

Table of content:-

Serial number Contents Page

numbers

1 Brief summary and Introduction 2 - 3

2 Process A problem description 3

3 Process A problem methodology and results 4 - 5

4 Process B problem description 6

5 ¯X- Chart methodology and results 7 - 8

6 R- Chart methodology and results 9 - 10

7 Conclusion 11

8 Reference 12

Introduction:-

The data given of the process A and B helps you to construct the different control chart to classify, that which type of control chart is more suitable to identify the quality control, the company should use for their betterment. By using different types of control chart, the line manager can easily distinguish which control chart will be the best for the company to use. Statistical process control is used to verify whether a business or manufacturing process is in control or not. Statistical control chart is used to predict the future performance of the business. So if the process is going out of control. The statistical process control chart helps the firm to identify the disorder and to fix it as soon as possible so the process can run smoothly without any disturbance.

Process A:-

To identify the best control chart to use for the business the quality manager gave ten wallpapers randomly from the process with number of flaws on each roll of wallpaper.

Number of Sheets Number of flaws Fraction Defective

1 1 0.01

2 1 0.01

3 2 0.02

4 0 0

5 1 0.01

6 5 0.05

7 0 0

8 2 0.02

9 0 0

10 2 0.02

The above process A is been solved by using the P-chart. P-chart measures percent defective in the sample. P-chart is much accurate than the C-chart. To...