How Large a Sample Is Needed for a Correlation of R

question 29

Multiple Choice

How large a sample is needed for a correlation of r = 0.550 to be significant using a two-tailed test with α = .05?​

• A)​n = 14
• B)​n = 13
• C)​n = 12
• D)​n = 11

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Definitions:

Acromegaly

A hormonal disorder that develops when the pituitary gland produces excessive growth hormone, leading to enlarged body parts.

Cushing's Syndrome

A condition caused by prolonged exposure to high levels of cortisol, leading to symptoms like weight gain, thinning skin, and a rounded face.

ADH

Antidiuretic Hormone, a hormone that helps regulate water balance in the body by controlling the water concentration of urine.

Urine Output

The amount of urine expelled from the body, used as an important indicator of kidney and overall health.