how to distinguish a statistically significant coefficient, right, rule of thumb is that the T ratio has to be greater than two with absolute value  right and the figures in square brackets next to the T ratios tell us the exact level of significance, right, er of that coefficient, right, so the incoming elasticity of demand is statistically significant from zero only at the eighty five percent level, a correspondence of fifteen percent significance that  incoming  the price elasticity demand, highly significant, right, significance level as given by the probabil by the probability er unit in square brackets, the timing level  therefore we could be very highly confident about that  coefficient okay.