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 |
| 24 | 14 |
| 60 | 9 |
| 10 | 33 |
| 22 | 10 |
| 34 | 18 |
| 47 | 30 |
| 12 | 12 |
| 12 | 17 |
| 27 | 9 |
| 30 | 3 |
| (a) | Considering only offices without a wait-tracking system, what is the z-score for the 10th patient in the sample (wait time = 30 minutes)? |
| If required, round your intermediate calculations and final answer to two decimal places. | |
| z-score = | |
| (b) | Considering only offices with a wait-tracking system, what is the z-score for the 6th patient in the sample (wait time = 30 minutes)? |
| If required, round your intermediate calculations and final answer to two decimal places. | |
| z-score = | |
| How does this z-score compare with the z-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 on z-scores, do the data for offices without a wait-tracking system contain any outliers? |
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more
Recent Comments