A Researcher Chooses a Simple Random Sample of 100 Lexington

question 40

Multiple Choice

A researcher chooses a simple random sample of 100 Lexington, Kentucky, residents and finds that 20 of them have put in a reservation for a Tesla Model 3. A 95 percent confidence interval for the proportion of all Lexington, Kentucky, residents who have put in a reservation for that car is (approximately) :

• A) 20 ± 3.
• B) 0.10 ± 0.04.
• C) 0.95 ± 0.20.
• D) 20 ± 6.
• E) 0.20 ± 0.08.

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Definitions:

Calcium Homeostasis

The regulation of calcium levels in the body, crucial for bone health, muscle function, and nerve signaling.

Parathyroid Hormone

A substance produced by the parathyroid glands responsible for controlling calcium concentration in the bloodstream.

Osteoclast Activity

The process involving cells that break down bone tissue, playing a vital role in bone remodeling and calcium homeostasis.

Closed Fracture

A type of bone fracture where the skin remains intact over the site of the break in the bone.