In a study of parents’ feelings about a required course in sex education, 360 parents, a random sample, are classified according to whether they have one, two, or three or more children in the school system and also whether they feel that the course is poor, adequate, or good. Based on the results shown in the following table, test at the 0.05 level of significance whether there is a relationship between parents’ reaction to the course and the number of children that they have in the school system:

  • CreatedNovember 04, 2015
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