A quality engineer at a textile manufacturer wants to determine the factors that affect the breaking strength of a synthetic fiber. The engineer samples the output of four production machines and three operators selected at random.
You can use this data to demonstrate Line Plot, With Symbols.
|Machine||The machine on which the sample was produced: 1, 2, 3, or 4|
|Operator||The operator of the machine: 1, 2, or 3|
|Strength||The breaking strength of the fiber sample|
|Temp||The temperature at which the sample was produced|