Four different paints are advertised as having the same drying time. To check the manufacturers' claims, five samples were tested for each of the paints. The time in minutes until the paint was dry enough for a second coat to be applied was recorded for each sample. The data obtained follow. Excel File: data16-21.xls Paint 1 Paint 2 Paint 3 Paint 4 128 144 133 150 137 133 143 142 135 142 137 135 124 146 136 140 141 130 131 153 a. Use o = 0.05 to test for any significant differences in mean drying time among the paints. If your answer is zero, enter "0", Lets define the dummy variables as follows: D1 D2 D3 Paint co to OOH Regression Statistics Multiple R (to 4 decimals) 0.9582 R Square (to 4 decimals) 0.9182 Adjusted R Square (to 4 decimals) 0.6731 X Standard Error (to 4 decimals) 3.9404 Observations (to whole number) 5 * ANOVA of SS MS Significance F (to whole number) (to whole number) (to 2 decimals) (to 4 decimals) (to 4 decimals) Regression 3 0 330 0 110 2.5433 0.0927 Residual 16 0 692 0 43.25 Total 19 1022 0 Coefficients Standard Error t Stat P-value (to whole number) (to 4 decimals) (to 4 decimals) (to 4 decimals) Intercept 5 X D1 X D2 D3 At the 0.05 level of significance, - Select your answer - V] Ho. b. What is your estimate of mean drying time for paint 2 (to whole number)