题目内容
（请给出正确答案）
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.
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“In regression analysis, a dummy variable or indicator variable:”相关的问题
A、found by taking the square root of SSR/SS total.
B、negative when one of the net regression coefficients is 0.
C、based on the term, (Y – Ŷ) 2.
D、the error of estimating the regression coefficients.
A、which regression coefficients do not equal 0.
B、whether any of the regression coefficients differ from 0.
C、whether any of the correlation coefficients differ from 0.
D、whether the intercept differs from 0.
A、all simple correlation coefficients.
B、all possible net regression coefficients.
C、only positive correlation coefficients.
D、the multiple regression equation.
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.
A、There is only one dependent variable.
B、The
term must be at least .50.
C、All the regression coefficients must be between -1.00 and 1.00.
D、There is only one (Y – Ŷ).
A、the residuals are correlated.
B、time is involved in the analysis.
C、the independent variables are correlated.
D、the residuals are not constant for all Ŷ values.
A、we use a t statistic.
B、we test for differences between each pair of regression coefficients.
C、we usually delete the variables where the null hypothesis is rejected.
D、regression coefficients with a negative coefficient are deleted from the equation.
A、It is a continuous probability distribution.
B、The χ2 statistic is always greater than or equal to zero.
C、It is negatively skewed.
D、It approaches a uniform distribution as the degrees of freedom increase.
A、To conduct a nonparametric hypothesis test:
B、the standard deviation must be known.
C、it is not necessary to make any assumption about the shape of the population.
D、the data must be at least interval scale.
A、1
B、3
C、8
D、399
警告：系统检测到您的账号存在安全风险
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
