02 0.5 Points Which statement is correct regarding the regression line for the population? 0 The regression parameters can be calculated based on our data. 0 It provides the predicted value of the response variable for a given value of the explanatory variable for our sample. 0 It provides the average value of the response variable for a given value of the explanatory variable for our population of interest. Q4 0.5 Points What is the null hypothesis when testing if there is a linear relationship between two quantitative variables? Oo=0 053:0 0,81=0 Ob1=0 Save Answer Q6 0.5 Points Which of the following are assumptions for the regression model? Linearity Independence Constant variance Save Answer Q7 0.5 Points Which statistic is a measure of the proportion of variability in the response variable that is explained by the regression line? Or Or2 O s_X O s_y O s010 0.5 Points Given a sample of size 71.. what are the degrees of freedom for the t-test for the slope of the regression line? Onl Orr2 On On+2 On+1