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QUESTION 16 A study was conducted to assess the effects that occur when children are exposed to cocain before birth. Children were tested at age

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QUESTION 16 A study was conducted to assess the effects that occur when children are exposed to cocain before birth. Children were tested at age 4 for object assembly skill. The 190 children born to cocain users had a mean of 7.3 and standard deviation of 3.0. The 186 children not exposed to cocain had a mean score of 8.2 with a standard deviation of 3.0. Find the value of the test statistic. (Note that another question asks for the p-value.) O-3.405 -2.903 8.709 -8.709 QUESTION 17

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