Does the data in the Intratevol-volatility.xlsx file support this statement?

1-Contoso, Ltd. produces microchips. Five types of defects (labeled 1–5) have been known to occur. Chips are manufactured by two operators (A and B), using four machines (1–4). You are given data about a sample of defective chips, including the type of defect, the operator, machine number, and day of the week the defect occurred. […]