Month

Equation

F-Ratio

P-Value

January

Y = −560.252 + 0.288x

6.674

0.011

February

Y = −474.387 + 0.246x

4.650

0.034

March

Y = −787.628 + 0.413x

5.883

0.017

April

Y = 141.288 − 0.003x

0.000

0.900

May

Y = 301.708 − 0.117x

0.570

0.452

June

Y = 14.681 − 0.003x

0.007

0.935

July

Y = 30.474 − 0.014x

0.746

0.390

August

Y = 74.154 − 0.034x

2.705

0.103

September

Y = 271-425 − 0.126x

8.538

0.004

October

Y = -402.387 + 0.239x

1.653

0.202

November

Y = −1461.509 + 0.810x

8.719

0.004

December

Y = −1154.100 + 0.602x

10.94

0.001