⑵請以5%之顯著水準檢定此迴歸模型是否合適。（15分） 

注 意 ： F_1,9,0.05=5.117 ， F_1,8,0.05=5.318 ， F_2,18,0.05=3.555 ， F_2,19,0.05=3.522 ，

 F_1,9,0.025=7.209，F_1,8,0.025=7.571，F_2,18,0.025=4.560，F_2,19,0.025=4.508，

 t_0.05,19=1.729 ， t_0.05,18=1.734 ， t0.05,10=1.813 ， t_0.025,19=2.093 ，

 t_0.025,18=2.101， t_0.025,10=2.228

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