you have to solve the case and find the mean chart (X-Bar Chart)Measures central tendency of a sample
Range chart (R-Chart)
Measures the amount of dispersion in a sample
p-charts
The p-chart graphs the proportion of defective items from subgroups, called p1, p2, p3, …
c-chart
Sometimes it is not possible to find the proportion defective in a sample as we don’t know how many non-defectives could have been there
The Cpk Capability Index

Cpk value that is smaller than 1 (most companies prefer 1.33) indicates that the process fails to satisfy the specs. Motorola has a Cpk value 2.