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The regression equation was not found to be significantly different from the line of identity.（）
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发布时间：2022-01-07
题目内容
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更多“The regression equation was no…”相关的问题
第1题
The regression equation was not found to be significantly different from the line of identity.
第2题
The difference between the actual y value and the predicted y value found using a regression equation is called the residual.（）
第3题
The difference between the actual y value and the predicted y value found using a regression equation is called the residual.（）
第4题
Stepwise regression is a method to:
A、eliminate insignificant variables from a multiple regression equation.
B、select the best regression equation with a single independent variable.
C、increase the total sum of squares.
D、select independent variables to include in a multiple regression equation that increase the multiple coefficient of determination the most.
第5题
What does the equation denote if the regression equation is （）
A．The explained sum of squares
B．The total sum of squares
C．The sample regression function
D．The population regression function
第6题
In a multiple regression equation, there are:
A、two or more dependent variables.
B、two or more independent variables.
C、two or more intercept values.
D、multiple coefficients of determination.
第7题
Suppose we developed the following least squares regression equation: . What can we conclude？
A、The dependent variable increases 3.5 for each unit increase in X.
B、The equation crosses the Y-axis at 2.1.
C、If X = 5, then is 14.
D、There is a significant positive relationship between the dependent and independent variables.
第8题
If the coefficient of determination is 95%, then:
A、95% of the variation in the dependent variable is explained by the independent variable.
B、95% of the variation in the independent variable is explained by the dependent variable.
C、the regression equation is 95% correct.
D、95% of the time, the confidence interval is a good estimate.
第9题
In regression analysis, a dummy variable or indicator variable:
A、may assume only a value of 0 or 1.
B、is another term for the dependent variable.
C、is found by (Y – Ŷ).
D、is equal to Ŷ.
