Question

How to determine what percentage of the quality sample is outside tolerance?

a. Calculate the ratio of non-conforming units to the total sample size
b. Conduct statistical analysis on the sample data
c. Use quality control charts
d. All of the above

Answer 1

To determine the percentage of a quality sample outside tolerance, calculate the ratio of non-conforming units to the total sample size, conduct statistical analysis, and use quality control charts, including calculation of sample mean and standard deviation.Option D is the correct answer.

Step-by-step explanation:

To determine what percentage of the quality sample is outside tolerance, all of the following steps should be considered:

1. Calculate the ratio of non-conforming units to the total sample size.
2. Conduct statistical analysis on the sample data.
3. Use quality control charts.

To specifically calculate the percentage:

1. Find the sample mean and sample standard deviation.
2. Compare the sample mean and sample standard deviation to the theoretical mean and the theoretical standard deviation.
3. Calculate the number of units falling outside the tolerance limits.
4. Divide the number of non-conforming units by the total sample size and multiply by 100 to get the percentage outside tolerance.

To determine the percentage of the quality sample outside tolerance, follow these steps: Calculate the ratio of non-conforming units to the total sample size. Conduct statistical analysis, considering the sample mean and standard deviation. Compare them to theoretical values. Calculate units outside tolerance limits. Divide non-conforming units by the total sample size, multiply by 100 for the percentage.