A Teacher Records the Test Scores for the 40 Students

question 94

Essay

A teacher records the test scores for the 40 students in her class. Corresponding to each score, she calculates a z-score. Julia's z-score is -2.8. Should she be concerned? Explain your reasoning.

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Definitions:

Esophagus

The muscular tube connecting the throat (pharynx) to the stomach, responsible for moving swallowed food and liquids to the stomach through peristaltic movements.

Bronchoscopy

A procedure that allows doctors to look at the airway through a thin viewing instrument called a bronchoscope.

Laryngospasm

A sudden and involuntary contraction of the vocal cords that obstructs breathing and can cause distress.

Gag Reflex

A reflex contraction of the back of the throat evoked by touching the soft palate, preventing choking.