Imagine you are interested in whether there is a significant difference between the mean age of marriage across educational groups. Use the data in the accompanying table to calculate the value of the between-group sum of squares.
RaceNMeanBlack11325.39White90422.99Other14423.87All Groups1,16123.33
What will be an ideal response?
896.37
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Which of the following acts made it possible to grant amnesty to 2.7 million illegal immigrants who could document that they had established long-term residency in the United States?
a. Immigration Reform and Control Act, 1986 b. Chinese Exclusion Act, 1882 c. Illegal Immigration Reform and Immigrant Responsibility Act, 1996 d. Immigration and Nationality Act, 1965
During a 40-year period that began during President Franklin Roosevelt's tenure, 90% of the loans made under the Federal Housing Administration (FHA) were to Hispanic home buyers.
Answer the following statement true (T) or false (F)
Periodicity is a particular problem for which sampling design?
a. simple random b. systematic c. cluster d. stratified e. snowball
Which of these is true regarding the impacts of the climate on food production?
a. Changes in the climate have been shown to have no impact on plant fertility. b. Changes in the climate have been linked to increases in arable land and agricultural productivity. c. Changes in the climate have been linked to decreased levels of CO2 in the air, improving growing conditions for the world’s most important crops. d. Changes in the climate have been linked to changes in the nutritional values of numerous foods.