A statistical program is recommended. 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 unity must estimate the company's usage without the interrupt. The period of interrupted service was from noon to 8:00 pm. Data on electric power consumption for the previous 72 hours are available Time Period Monday Tuesday Wednesday Thursday 12-4 am - 4-0 10,201 31,200 27.330 33,205 37,014 32,715 8-12 noon - 99,526 119,978) 152,475 12-4pm 124,299 123.676 150,033 4-8pm. 113.545 111,717 6-12 midnight 73,923 41.300 40.112 (a) Is there a seasonal effect over the 24-hour period? O Yes, the time series plot indicates a seasonal effect with a possible linear trend No, the time senes plet indicates a hortontal pattern O No, the time series plot indicates a linear trend with no seasonal effect ON the time series plot indicates a curvilinear trend with no seasonal effect (b) Compute seasonal indexes for the six 4-hour periods. (Round your answers to four decimal places.) Adjusted Seasonal Index Time Period Seasonal Index 12-4a.m. 2464 x x 4-5 am x x 8-12 12000 x x 12-4pm 11800 x x 4-8 10417 x x -12 midnight 4756 x cut back consumption if the utility requests them to do so. A certain company cuts back consumption at 1 e interrupt. The period of interrupted service was from noon to 8:00 p.m. Data on electric power consump Time Period Monday Tuesday Wednesday Thursday 12-4 a.m. - 19,281 31,209 27,330 4-8 a.m. - 33,205 37,014 32,715 8-12 noon 99,526 119,978 152,475 12-4 p.m. 124,299 123,676 156,033 4-8 p.m. 113,545 111,717 128,889 41,300 48,112 73,923 8-12 midnight a) Is there a seasonal effect over the 24-hour period? ff with a porcible linear trend