We will assume that the process under investigation is operating continuously, 24 hours a day, and we know from the Chart headings that a sample is to be taken every hour. You are working the night shift on Monday, 1st April. It is now 01:00, and you take the first sample. You take the next five covers as they come off the line and weigh each one. The measurements of these 5 covers are:
|
Cover 1: 177g |
These values must be recorded in the first column of the boxes below the graphs. Complete the five boxes on the section of the Mean & Range Chart below.