Consider the following quarterly demand level for electricity (in 1000 megawatts) in Mankweng from 2018 to 2022: |2018 2019 2020 2021 2022 Jan - March 21 35 49 60 19

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Consider the following quarterly demand level for electricity (in 1000 megawatts) in
Mankweng from 2018 to 2022:
2018 2019 2020 2021 2022
Jan – March
21
35
49
60
10
Apr – June
July – Sept
Oct – Dec
42
54
55
64
05
60
91
95
99
12
14
74
80
1. Find the least squares trend line for electricity demand using Ex = 0 method.
2. Find the seasonal index for each quarter.
3. Find adjusted seasonal index.
4. Find the De-seasonalized values for Quarter 1, 2,3 and 4 for the year 2023.
5. Estimate the demand for electricity for Quarter 1, 2, 3 and 4 for the year 2024.
Transcribed Image Text:Questions Consider the following quarterly demand level for electricity (in 1000 megawatts) in Mankweng from 2018 to 2022: 2018 2019 2020 2021 2022 Jan – March 21 35 49 60 10 Apr – June July – Sept Oct – Dec 42 54 55 64 05 60 91 95 99 12 14 74 80 1. Find the least squares trend line for electricity demand using Ex = 0 method. 2. Find the seasonal index for each quarter. 3. Find adjusted seasonal index. 4. Find the De-seasonalized values for Quarter 1, 2,3 and 4 for the year 2023. 5. Estimate the demand for electricity for Quarter 1, 2, 3 and 4 for the year 2024.
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