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13th Edition

Anderson

Publisher: CENGAGE L

ISBN: 9781305881884

Chapter 3, Problem 64SE

**a.**

To determine

Find the mean and median of patient wait times for offices with a wait-tracking system.

Find the mean and median of patient wait times for offices without a wait-tracking system.

**b.**

To determine

Find the variance and standard deviation of patient wait times for offices with a wait-tracking system.

Find the variance and standard deviation of patient wait times for visits to offices without a wait-tracking system.

**c.**

To determine

Explain whether offices with a wait-tracking system have shorter patient wait times than offices without a wait-tracking system.

**d.**

To determine

Find the *z*-score for the tenth patient in the sample by considering only offices without a wait-tracking system.

**e.**

To determine

Find the *z*-score for the sixth patient in the sample by considering only offices with a wait-tracking system and compare this *z*-score with the *z*-score calculated in part (d).

**f.**

To determine

Check whether the data for offices without a wait-tracking system contain any outliers based on *z*-scores.

Check whether the data for offices with a wait-tracking system contain any outliers based on *z*-scores.