You run a regression analysis on a bivariate (two-variable) set of data. You obtain the regression equationy=3.888x+10.271=-3.888+10.271with a correlation coefficient of r=0.778=-0.778 . You want to predict what value (on average) for the explanatory variable will give you a value of 170 on the response variable. What is the predicted explanatory value? x = (Report answer accurate to one decimal place.)