Suppose Studentsʹ Ages Follow a Skewed Right Distribution with a Mean

question 8

Multiple Choice

Suppose studentsʹ ages follow a skewed right distribution with a mean of 24 years old and a standard deviation of 3 years. If we randomly sample 350 students, which of the following
Statements about the sampling distribution of the sample mean age is incorrect?

• A)The mean of the sampling distribution is approximately 24 years old.
• B)The shape of the sampling distribution is approximately normal.
• C)The standard deviation of the sampling distribution is equal to 3 years.
• D)All of the above statements are correct.

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Definitions:

CAM Therapist

A healthcare provider who practices complementary and alternative medicine, using non-traditional methods to treat patients.

Biofeedback

A technique that trains people to improve their health by controlling certain bodily processes that normally happen involuntarily, such as heart rate, blood pressure, muscle tension, and skin temperature.

Naturopathy

A form of alternative medicine that utilizes natural remedies and the body's vital ability to heal and maintain itself.

Homeopathy

An alternative medicine system based on the belief that the body can cure itself, using tiny amounts of natural substances to stimulate healing.