Calls to a dispatching emergency center for the past 24 weeks are shown in the following table: week 1 2 3 4 5 6 7 8 9 10 11 12 calls 50 35 25 40 45 35 20 30 35 20 15 40 week 13 14 15 16 17 18 19 20 21 22 23 24 calls 55 35 25 55 55 40 35 60 75 50 40 65 a- Use a 3-weighted moving average, with weights in descending order from recent to oldest with w1=2w2, w2=2w3
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
Calls to a dispatching emergency center for the past 24 weeks are shown in the following table:
|
week |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
|
calls |
50 |
35 |
25 |
40 |
45 |
35 |
20 |
30 |
35 |
20 |
15 |
40 |
|
week |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
|
calls |
55 |
35 |
25 |
55 |
55 |
40 |
35 |
60 |
75 |
50 |
40 |
65 |
a- Use a 3-weighted moving average, with weights in descending order from recent to oldest
with w1=2w2, w2=2w3
b- Find the MAD and MAPE of part a
c- Plot the table and give at least three observations from the plot.
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