An engineer at a metals company wants to determine whether the diameter of a cable wire that the company manufactures meets specifications. Each hour, operators take a subgroup of five consecutive cable wires from the production line and measure the diameters. A cable wire must be 0.55 ± 0.05 cm in diameter to meet engineering specifications.
You can use this data to demonstrate Normal Capability Analysis and other analyses that require normally distributed data.
|The cable wire diameter. Some missing values are present, represented as *.
|The subgroup identification number. Every 5 rows represent a subgroup.