Asked by angela vidal on May 11, 2024
Verified
A producer of brass rivets randomly samples 500 rivets each hour and calculates the proportion of defectives in the sample. The mean sample proportion calculated from 250 samples was equal to 0.025. Calculate the upper and lower control limits for a control chart for the proportion of defectives in samples of 500 rivets.
UCL = ______________
LCL = ______________
Control Chart
A graphical tool used in process control to track if a process is functioning within predetermined limits over time.
Proportion of Defectives
The fraction or percentage of units in a batch or production lot that are considered to be non-conforming or defective, typically used in quality control and manufacturing processes.
Upper and Lower Control Limits
The thresholds in control charts within which a process is considered to be in control and stable, with the Upper Control Limit being the maximum acceptable limit and the Lower Control Limit the minimum.
- Become proficient in the employment and formulation of p-charts to monitor defective proportions in samples.
- Comprehend the critical role of sample size in relation to control charts and statistical process control.
Verified Answer
GC
Learning Objectives
- Become proficient in the employment and formulation of p-charts to monitor defective proportions in samples.
- Comprehend the critical role of sample size in relation to control charts and statistical process control.