How do I create a process capability report in Minitab?

Step 1: Go to File menu, click on Open Project and then load the required data. Step 2: Go to Start menu, move to Quality Tools and then to Capability Analysis. Step 4: Click on non-normal (or normal), enter the details required for conducting the capability analysis and then click Ok.

Under which Minitab menu can you find capability analysis?

The full range of capability tools in Minitab are found in the Stat > Quality Tools > Capability Analysis menu, including: Normal and Non-normal Capability Analysis.

Can you do a capability analysis with non-normal data?

Use Nonnormal Capability Analysis to evaluate the capability of your process based on a nonnormal distribution. Using this analysis, you can do the following: Determine whether the process is capable of producing output that meets customer requirements. Evaluate the overall capability of the process.

How do you convert non-normal data to normal data?

Box-Cox Transformation is a type of power transformation to convert non-normal data to normal data by raising the distribution to a power of lambda (λ). The algorithm can automatically decide the lambda (λ) parameter that best transforms the distribution into normal distribution.

Where is capability analysis in Minitab?

In Minitab, choose Stat > Quality Tools > Capability Analysis > Multiple Variables (Nonnormal). To assess the assumptions of a nonnormal capability analysis and evaluate only the major capability indices, use a capability Sixpack analysis. In Minitab, choose Stat > Quality Tools > Capability Sixpack > Nonnormal.

What is capability analysis in Minitab?

Capability analysis is used to evaluate whether a process is capable of producing output that meets customer requirements. The Minitab Assistant includes two capability analyses to examine continuous process data. • Capability Analysis: This analysis evaluates capability based on a single process variable.

How do you know if data is normally in Minitab?

Choose Stat > Basic Statistics > Normality Test. The test results indicate whether you should reject or fail to reject the null hypothesis that the data come from a normally distributed population. You can do a normality test and produce a normal probability plot in the same analysis.

What is CPM in Minitab?

Cpm. Cpm is a measure of the overall capability of the process. Cpm compares the specification spread to the spread of your process data while taking into account how much the data deviate from the target value. You must provide a target value for Minitab to calculate the Cpm.

Can you do a capability analysis with non normal data?

Can you use Cpk for non normal data?

With non-normal data, it is wrong to calculate a Cpk based on the raw data. A better approach is to determine what distribution best fits your process and data and then use the non-normal Ppk approach. The equations for Ppk are different for non-normal data than for normally distributed data.

How do I perform a capability analysis (nonnormal) using Minitab?

In Minitab, select Stat > Quality Tools > Capability Analysis > Nonnormal… Populate the “Capability Analysis (Nonnormal Distribution)” dialogue box as seen below. Make sure to select “Exponential” next to Fit distribution.

How do I perform a capability analysis for normal data?

Transform the data so that the normal distribution is an appropriate model, and use a capability analysis for normal data, such as Normal Capability Analysis. Selecting an appropriate distribution is an essential first step in conducting a capability analyses.

Are there any nonparametric capability analysis methods available for non-normal data?

“Capability Indices for Non-Normal Data,” Quality Engineering, 12 (4), 489-495. There are other nonparametric capability analysis methods available. Only the empirical percentile method is shown here.

How do I download and save a Minitab macro?

If you use an older web browser, when you click the Download button, the file may open in Quicktime, which shares the .mac file extension with Minitab macros. To save the macro, right-click the Download button and choose Save target as.