In: Statistics and Probability
Suppose that the average waiting time for a patient at a
physician's office is just over...
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 (in 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 |
20 |
8 |
56 |
12 |
12 |
11 |
35 |
16 |
26 |
32 |
48 |
36 |
16 |
8 |
10 |
9 |
27 |
15 |
36 |
5 |
(a) |
What are the mean and median patient wait times for offices
with a wait-tracking system? |
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If required, round your answer to two decimal places. |
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What are the mean and median patient wait times for offices
without a wait-tracking system? |
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If required, round your answer to two decimal places. |
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(b) |
What are the variance and standard deviation of patient wait
times for offices with a wait-tracking system? |
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If required, round your answer to two decimal places. Do not
round intermediate calculations. |
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Variance |
= |
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Standard deviation |
= |
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What are the variance and standard deviation of patient wait
times for visits to offices without a wait-tracking system? |
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If required, round your answer to two decimal places. Do not
round intermediate calculations. |
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Variance |
= |
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Standard deviation |
= |
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(c) |
Choose the correct box plot for patient wait times for offices
without a wait-tracking system. |
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- Select your answer -Graph (i)Graph (ii)Graph (iii)Graph
(iv)Item 9 |
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(d) |
Choose the correct box plot for patient wait times for offices
with a wait-tracking system. |
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- Select your answer -Graph (i)Graph (ii)Graph (iii)Graph
(iv)Item 10 |
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(e) |
Do offices with a wait-tracking system have shorter patient
wait times than offices without a wait-tracking system? |
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- Select your answer -Yes or No |