Suppose that the average waiting time for a patient at a physician's office is just over 29 minutes. In order to address the issue of long patient wait times, some physicians' offices are using wait-tracking systems to notify patients of expected wait times. Patients can adjust their arrival times based on this information and spend less time in waiting rooms. The following data show wait times (minutes) for a sample of patients at offices that do not have a wait-tracking system and wait times for a sample of patients at offices with a wait-tracking system. Without Wait-Tracking System With Wait-TrackingSystem 22 12 65 8 10 31 34 16 23 10 47 32 15 9 12 17 25 9 32 6 (a) Considering only officeswithout a wait-tracking system, what is thez-score for the 10th patient in the sample (wait time = 32 minutes)? If required, round your intermediate calculations and final answer to two decimal places. z-score = (b) Considering only officeswith a wait-tracking system, what is thez-score for the 6th patient in the sample (wait time = 32 minutes)? If required, round your intermediate calculations and final answer to two decimal places. z-score = How does thisz-score compare with thez-score you calculated for part (a)? The input in the box below will not be graded, but may be reviewed and considered by your instructor. (c) Based onz-scores, do the data for offices without a wait-tracking system contain any outliers? Based onz-scores, do the data for offices with a wait-tracking system contain any outliers?

Suppose that the average waiting time for a patient at a physician's office is just over 29 minutes. In order to address the issue of long patient wait times, some physicians' offices are using...

Suppose that the average waiting time for a patient at a physician's office is just over 29 minutes. In order to address the issue of long patient wait times, some physicians' offices are using wait-tracking systems to notify patients of expected wait times. Patients can adjust their arrival times based on this information and spend less time in waiting rooms. The following data show wait times (minutes) for a sample of patients at offices that do not have a wait-tracking system and wait times for a sample of patients at offices with a wait-tracking system.

Without Wait- Tracking System	With Wait-Tracking System
22	12
65	8
10	31
34	16
23	10
47	32
15	9
12	17
25	9
32	6

(a)	Considering only officeswithout a wait-tracking system, what is thez-score for the 10th patient in the sample (wait time = 32 minutes)?
	If required, round your intermediate calculations and final answer to two decimal places.
	z-score =

(b)	Considering only officeswith a wait-tracking system, what is thez-score for the 6th patient in the sample (wait time = 32 minutes)?
	If required, round your intermediate calculations and final answer to two decimal places.
	z-score =

	How does thisz-score compare with thez-score you calculated for part (a)?
	The input in the box below will not be graded, but may be reviewed and considered by your instructor.


(c)	Based onz-scores, do the data for offices without a wait-tracking system contain any outliers?


	Based onz-scores, do the data for offices with a wait-tracking system contain any outliers?

Jun 10, 2022

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