Given the following data on hotel check-ins for a 6-month period:
Month
|
Number of rooms
|
July
|
70
|
August
|
105
|
September
|
90
|
October
|
120
|
November
|
110
|
December
|
115
|
a. What is the 3-month moving average for January?
b. What is the 5-month moving average for January?