Electric power consumption is measured in kilowatt-hours (kWh). The local utility company offers an interrupt program whereby commercial customers that participate receive favorable rates but must agree to cut back consumption if the utility requests them to do so. A certain company cuts back consumption at 12:00 noon Thursday. To assess the savings, the utility must estimate the company's usage without the interrupt. The period of interrupted service was from noon to 8:00 p.m. Data on electric power consumption for the previous 72 hours are available. Time Period Monday Tuesday 19,281 12-4 a.m. 4-8 a.m. 8-12 noon. 12-4 p.m. 4-8 p.m. 8-12 midnight 124,309 33,195 99,526 123,666 113,545 111,717 41,300 48,122 Wednesday 31,219 37,014 119,978 156,043 128,899 73,923 Thursday 27,330 32,725 152,465

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
Section: Chapter Questions
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(b) Compute seasonal indexes for the six 4-hour periods. (Round your answers to four decimal places.)
Time Period
12-4 a.m.
4-8 a.m.
8-12 noon
12-4 p.m.
4-8 p.m.
Seasonal
Index
0.8109
1.0715
3.9631
4.3318
3.8187
8-12 midnight 1.7310
X
X
X
X
X
Adjusted
Seasonal
Index
-19.9100
7.1480
X
X
293.6110 X
333.1820 X
281.8670 X
X 73.1000 X
(c) Use trend adjusted for seasonal indexes to estimate the company's normal usage (in kWh) over the period of interrupted service. (Round your answer to the nearest integer.)
1437012 X kWh
Transcribed Image Text:(b) Compute seasonal indexes for the six 4-hour periods. (Round your answers to four decimal places.) Time Period 12-4 a.m. 4-8 a.m. 8-12 noon 12-4 p.m. 4-8 p.m. Seasonal Index 0.8109 1.0715 3.9631 4.3318 3.8187 8-12 midnight 1.7310 X X X X X Adjusted Seasonal Index -19.9100 7.1480 X X 293.6110 X 333.1820 X 281.8670 X X 73.1000 X (c) Use trend adjusted for seasonal indexes to estimate the company's normal usage (in kWh) over the period of interrupted service. (Round your answer to the nearest integer.) 1437012 X kWh
Electric power consumption is measured in kilowatt-hours (kWh). The local utility company offers an interrupt program whereby commercial customers that participate receive favorable rates but must
agree to cut back consumption if the utility requests them to do so. A certain company cuts back consumption at 12:00 noon Thursday. To assess the savings, the utility must estimate the company's usage
without the interrupt. The period of interrupted service was from noon to 8:00 p.m. Data on electric power consumption for the previous 72 hours are available.
Time Period Monday Tuesday
12-4 a.m.
4-8 a.m.
8-12 noon
12-4 p.m.
4-8 p.m.
8-12 midnight
19,281
33,195
99,526
124,309 123,666
113,545 111,717
41,300 48,122
Wednesday
31,219
37,014
119,978
156,043
128,899
73,923
Thursday
27,330
32,725
152,465
Transcribed Image Text:Electric power consumption is measured in kilowatt-hours (kWh). The local utility company offers an interrupt program whereby commercial customers that participate receive favorable rates but must agree to cut back consumption if the utility requests them to do so. A certain company cuts back consumption at 12:00 noon Thursday. To assess the savings, the utility must estimate the company's usage without the interrupt. The period of interrupted service was from noon to 8:00 p.m. Data on electric power consumption for the previous 72 hours are available. Time Period Monday Tuesday 12-4 a.m. 4-8 a.m. 8-12 noon 12-4 p.m. 4-8 p.m. 8-12 midnight 19,281 33,195 99,526 124,309 123,666 113,545 111,717 41,300 48,122 Wednesday 31,219 37,014 119,978 156,043 128,899 73,923 Thursday 27,330 32,725 152,465
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