Construct An $R$ Chart and Determine Whether the Process Variation Is Within Statistical

question 17

Essay

Construct an $R$ chart and determine whether the process variation is within statistical control.

A machine that is supposed to fill small bottles to contain 20 milliliters yields the following data from a test of 4 bottles every hour.

---

Definitions:

Longitudinal

Pertains to research or studies that observe the same subjects over a period of time, often to detect changes or developments.

Cross-sectional

A research design that looks at data from a population at a single point in time to identify patterns and associations.

Sequential

Pertaining to events, processes, or items that follow one after another in a specific order.

Longitudinal

A type of study or analysis that follows the same subjects over a period of time to observe changes or developments.