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Ten samples of size four were taken from a process, and their weights measured. The sample averages and sample ranges are in the following table. Construct and plot an x-bar and R-chart using this data. Is the process in control?
Evolutionary Psychologist
A researcher focused on understanding how evolutionary principles shape human behaviours and mental processes.
Survival Advantage
A characteristic that makes an organism more likely to survive and reproduce in its environment compared to others without the trait.
Fatty Substances
Organic compounds consisting largely of lipids, often playing crucial roles in energy storage, insulation, and cellular structure.
Darwin's Theory
A scientific theory developed by Charles Darwin that explains the diversity of life on Earth through the process of natural selection.
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