In a Hearing Test, Subjects Estimate the Loudness (In Decibels)

question 16

Multiple Choice

In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are (mean = 70) :
68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68

-What is the variance?

• A)18
• B)4.73
• C)22.40
• D)324
• E)6.76

Construct and interpret confidence intervals for population means.

Understand the assumptions underlying statistical tests and confidence intervals.

Apply hypothesis testing to compare means from two populations.

Understand the concept of sampling distribution and its importance in hypothesis testing.

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Definitions:

Lateral Excursion

The side-to-side movement of the mandible (lower jaw), which plays a key role in the process of chewing food.

Anatomical Position

A standardized stance in anatomy where the body is erect, facing forward, with arms at the sides and palms facing forward.

Opposition

Resistance or dissent, expressed in action or argument.

Rotator Cuff

A group of muscles and tendons that surround the shoulder joint, keeping the head of your upper arm bone firmly within the shallow socket of the shoulder.