Given below are seven observations collected in a regression study on two variables, x (independent variable) and y (dependent variable). Use Excel's Regression Tool to construct a residual plot and use it to determine if any model assumption have been violated.
Definitions:
Pituitary Gland
A pea-sized gland located at the base of the brain that produces hormones which regulate important bodily functions, including growth, metabolism, and reproduction.
Adrenal Glands
Glands located above the kidneys that produce a variety of hormones including adrenaline and cortisol, which regulate stress responses and other vital functions.
Circadian Variables
Factors that can influence the rhythm of circadian biological clocks, including light exposure, timing of meals, and physical activity.
Alzheimer's Disease
A progressive neurological disorder that causes memory loss, cognitive decline, and eventually, loss of ability to carry out simple tasks.
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