Jean,an expert on dental hygiene,hypothesizes that the dental hygiene of students at the Westwood Elementary School is similar to that of students at Easton Elementary.In order to test her hypothesis,she collects information about children at each school from dentists in the area,recording the number of cavities that each child has had in the past year.Her findings appear in the following table.
The null hypothesis is that the proportions of students with no cavities,one cavity,two cavities,and three or more cavities are relatively the same between schools.What is the value of the test statistic,rounded to three decimal places,that Jean will use?

Question

Jean,an expert on dental hygiene,hypothesizes that the dental hygiene of students at the Westwood Elementary School is similar to that of students at Easton Elementary.In order to test her hypothesis,she collects information about children at each school from dentists in the area,recording the number of cavities that each child has had in the past year.Her findings appear in the following table.
  The null hypothesis is that the proportions of students with no cavities,one cavity,two cavities,and three or more cavities are relatively the same between schools.What is the value of the test statistic,rounded to three decimal places,that Jean will use?

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The Answer of Jean,an expert on dental hygiene,hypothesizes that the dental hygiene of students at the Westwood Elementary School is similar to that of students at Easton Elementary.In order to test her hypothesis,she collects information about children at each school from dentists in the area,recording the number of cavities that each child has had in the past year.Her findings appear in the following table.
  The null hypothesis is that the proportions of students with no cavities,one cavity,two cavities,and three or more cavities are relatively the same between schools.What is the value of the test statistic,rounded to three decimal places,that Jean will use?

Jean,an Expert on Dental Hygiene,hypothesizes That the Dental Hygiene of Students