A researcher is interested in whether there is a significant difference between the mean age of marriage across three racial groups in the 2006 General Social Survey. The data are provided in the accompanying data. If the value of the mean square within is 36.87, calculate the within- group sum of squares and the number of degrees of freedom for the within-group sum of squares. Race N Mean Black 113 25.39 White 904 22.99 Other 144 23.87 All groups 1,161 23.33
A researcher is interested in whether there is a significant difference between the mean age of marriage across three racial groups in the 2006 General Social Survey. The data are provided in the accompanying data. If the value of the mean square within is 36.87, calculate the within- group sum of squares and the number of degrees of freedom for the within-group sum of squares. Race N Mean Black 113 25.39 White 904 22.99 Other 144 23.87 All groups 1,161 23.33
Chapter1: Making Economics Decisions
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
Transcribed Image Text:A researcher is interested in whether there is a significant difference between the mean age of
marriage across three racial groups in the 2006 General Social Survey. The data are provided in
the accompanying data. If the value of the mean square within is 36.87, calculate the within-
group sum of squares and the number of degrees of freedom for the within-group sum of
squares.
Race
N
Mean
Black
113
25.39
White
904
22.99
Other
144
23.87
All groups
1,161
23.33
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