The following results show your estimation when including in the regression: = 0.50 0.10 0.01 (2) (0.20) (0.06) (0.03) = 247, 2 = 0.24 What is the 95% confidence interval around ? You should round the relevant critical value to the nearest tenth when answering, and actually calculate the values of the upper and lower bounds. What can we conclude about the statistical significance of based on this confidence interval