Question

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 24 14 60 9 10 33 22 10 34 18 47 30 12 12 12 17 27 9 30 3 (a) What are the mean and median patient wait times for offices with a wait-tracking system? If required, round your answer to two decimal places. Mean = Median = What are the mean and median patient wait times for offices without a wait-tracking system? If required, round your answer to two decimal places. Mean = Median = (b) What are the variance and standard deviation of patient wait times for offices with a wait-tracking system? If required, round your answer to two decimal places. Do not round intermediate calculations. Variance = Standard deviation = What are the variance and standard deviation of patient wait times for visits to offices without a wait-tracking system? If required, round your answer to two decimal places. Do not round intermediate calculations. Variance = Standard deviation =

Solutions

Expert Solution

A) The mean and median patient wait times for offices with a wait-tracking system is 27.8 and 25.5.

Mean is not equal to  Median.

B) The mean and median patient wait times for offices without a wait-tracking system is 15.5 and 13.

Mean is not equal to  Median.

C) The variance and standard deviation of patient wait times for offices with a wait-tracking system is 257.0667
and 16.0333

D) The variance and standard deviation of patient wait times for offices with a wait-tracking system is 90.05556
and 9.489761

Used R. On L.H.S is output and on R.H.S. is code

orchestra answered 2 years ago
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