7. Quarterly billing for water usage is shown below. Year Quarter 1 2 3 4 Winter...

7. Quarterly billing for water usage is shown below.

Year Quarter 1 2 3 4

Winter 64 66 68 73

Spring 103 103 104 120

Summer 152 160 162 176

Fall 73 72 78 88

The forecast equation is: Ft = 64.875 – 6.1375 Qtr1t + 32.325 Qtr2t + 86.0375 Qtr3t + 1.2875 (t). Forecast the summer of year 5 and spring of year 6.

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orchestra answered 1 year ago

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