Is there a relationship between a mother€™s education level and how long she breast feeds her child? A curious researcher selects samples of mothers from three different education levels and determines their length of breast-feeding (measured in months). Test the null hypothesis that education level has no effect on how long a mother breast-feeds her child.

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Less Than High School College High School Graduate Graduate 1.0 6.5 4.5 2.0 8.5 1.5 4.0 3.5 1.5 5.0 11.0 6.5 4.5 7.5 9.0