未知题型

某制造公司的总经理最近比较关心公司员工的缺勤情况。为此，公司的人事经理收集了15个人的年龄和在过去一年中缺勤天数的资料(见下表)来研究这一问题。

请根据以上资料进行计算和分析，从下列备选答案中选出正确答案。
根据最小二乘法对参数β0、β1作出估计，计算结果为( )。
A．β0=-4.2769
B．β1=0.2538
C．β0=0.2538
D．β1=-4.2768

【参考答案】

AB
解析：采用普通最小二乘法进行估计，β₀和β₁的参数估计量分别为：

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