Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual.
Consider a score to be unusual if its z-score is less than -2.00 or greater than 2.00. Round the z-score to the nearest tenth if necessary.
-A body temperature of 96.5° F given that human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°.
A) 2.7; unusual
B) -1.7; not usual
C) -2.7; unusual
D) -2.7; not unusual

Question

Quizplus · Accepted Answer

The z-score is calculated as (96.5 - 98.20) / 0.62 = -2.7. Since -2.7 is less than -2.00, the body temperature is considered unusual.

Find the Z-Score Corresponding to the Given Value and Use