回归分析 考察温度x对产量y的影响 测得下列10组数据 求y关于x的线性回归方程 检验回归效果是否显著 并预测x=42℃时产量的估值及预测区间-Regression analysis, study the temperature on the yield y of x measured by the following 10 sets of data demand y on x, the linear regression equation of the regression effect is significant and predicted x = 42 ℃ when the output of the valuation and prediction interval