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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

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

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 8CR
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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
Transcribed Image Text: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 a = 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 1 1 1 1 Regression Statistics Multiple R (to 4 decimals) R Square (to 4 decimals) Adjusted R Square (to 4 decimals) Standard Error (to 4 decimals) Observations (to whole number) ANOVA df MS F Significance (to whole (to whole (to 2 (to 4 F number) number) decimals) decimals) (to 4 decimals) Regression Residual Total Coefficients Standard t Stat P-value (to whole Error (to 4 (to 4 number) (to 4 decimals) decimals) decimals) Intercept D1 D2 D3 At the 0.05 level of significance, Select your answer Но- b. What is your estimate of mean drying time for paint 2 (to whole number)? 234
Transcribed Image Text:a. Use a = 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 1 1 1 1 Regression Statistics Multiple R (to 4 decimals) R Square (to 4 decimals) Adjusted R Square (to 4 decimals) Standard Error (to 4 decimals) Observations (to whole number) ANOVA df MS F Significance (to whole (to whole (to 2 (to 4 F number) number) decimals) decimals) (to 4 decimals) Regression Residual Total Coefficients Standard t Stat P-value (to whole Error (to 4 (to 4 number) (to 4 decimals) decimals) decimals) Intercept D1 D2 D3 At the 0.05 level of significance, Select your answer Но- b. What is your estimate of mean drying time for paint 2 (to whole number)? 234
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