Use the following statement to answer the questions below.
-The distribution of waiting times at the student health center is bell-shaped with a mean of 10 minutes and a standard deviation of 3. Find the z-score of someone who waits 5 minutes. Round your z-score to two decimal places. Be sure to specifically indicate if a wait time of 5 minutes is unusual.
A) -1.67; The wait time is not unusual.
B) 1.67; The wait time is unusual.
C) -1.67; The wait time is unusual.
D) 1.67; The wait time is not unusual.

Question

Quizplus · Accepted Answer

Interpretations will vary:
An individual who waits 5 minutes has a wait time that is 1.67 standard deviations below the mean wait time.
If the z-score is less than two standard deviations below the mean, the answer should indicate that this wait time is not unusual.
If the z-score is more than two standard deviations below the mean, the answer should indicate that this wait time is unusual.

Use the Following Statement to Answer the Questions Below