Question: A day spa would like to estimate the average time a client spends at their facility. The manager hires a student intern to observe the business on five different days at a random time each day. Here are the results of the observations:
|
Date of Observation
|
Number of clients in the waiting area
|
Number of clients getting a massage
|
Number of clients getting a facial
|
Number of clients in the tanning booths
|
|
1/15/2017
|
1
|
3
|
2
|
1
|
|
1/22/2017
|
1
|
1
|
1
|
2
|
|
1/28/2017
|
3
|
2
|
0
|
0
|
|
2/4/2017
|
2
|
1
|
1
|
2
|
|
2/6/2017
|
2
|
2
|
2
|
1
|
Records show that the facility sees, on average, 40 clients per day. Assume they operate from 9:00 am to 5:00 pm. How long in minutes does a patient spend in their facility on average?