Construct a 90% Confidence Interval for the Population Mean, μ

question 12

Multiple Choice

Construct a 90% confidence interval for the population mean, μ. Assume the population has a normaldistribution. A sample of 15 randomly selected math majors has a grade point average of 2.86 with a standarddeviation of 0.78. Round to the nearest hundredth.

• A) (2.51, 3.21)
• B) (2.41, 3.42)
• C) (2.37, 3.56)
• D) (2.28, 3.66)

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Definitions:

Adductors

Muscles located in the thigh that are responsible for pulling the legs together, playing a crucial role in stabilization and movement.

Infraspinatus

A muscle located on the back of the shoulder blade, involved in the rotation and stabilization of the shoulder joint.

Laterally Rotates

The action of rotating a limb or an organ away from the midline of the body.

Medially Rotates

The action of rotating a limb or organ toward the central axis of the body.