A Linear Trend Equation for Sales of the Form

Short Answer

A linear trend equation for sales of the form was estimated using annual sales data for the period 2000 - 2007 (i.e., t = 2000, 2001, ..., 2007). The results of the regression are as follows:

-At the 10 percent level of significance, the critical value of the t-statistic is _______. The parameter estimate of a ________ (is, is not) statistically significant. The parameter estimate of b ________ (is, is not) statistically significant.