Question: how do you get to this answer with information in the analysis? To predict the mean additional drilling time for a dry drilling hole at

how do you get to this answer with information in the analysis? To predict the mean additional drilling time for a dry drilling hole at a depth of 100 feet, substitute these values into the regression equation: Time = 8.01 + 0.00523*100 - 2.1052*1 = 8.01 + 0.523 - 2.1052 = 6.4278 minutes The 95% confidence interval for this prediction is between 4.02 minutes and 8.83 minutes (from the Lower 95% and Upper 95% values for Type_Code). The 95% prediction interval is not provided in this output

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