9 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 dataobtained follow.Excel File: data16-21.xlsPaint 1Paint 2Paint 3Paint 4128144133150137133143142135142137135124146136140141130131153 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:D1D2D3Paint1111Regression StatisticsMultiple R (to 4 decimals)R Square (to 4 decimals)Adjusted R Square (to 4decimals)Standard Error (to 4decimals)Observations (to wholenumber)ANOVAdfMSFSignificance(to whole(to whole(to 2(to 4Fnumber)number) decimals) decimals)(to 4decimals)RegressionResidualTotalCoefficients Standard t StatP-value(to wholeError(to 4(to 4number)(to 4decimals) decimals)decimals)InterceptD1D2D3At the 0.05 level of significance,Select your answerНо-b. What is your estimate of mean drying time for paint 2 (to whole number)?234

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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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 27PFA

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

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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

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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