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A Cell Phone Company Wants to Determine If the Use

Question 27

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A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers. A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers.   To conduct a test of independence,the difference expected value for the  40 and over and regularly use text messaging  cell is just over 43 people. To conduct a test of independence,the difference expected value for the "40 and over and regularly use text messaging" cell is just over 43 people.

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