Here is the instruction to the question: Assume that the twosamples are independent simple random samples selected fromnormally distributed populations. Do not assume that the populationstandard deviation are equal. Here is the question: A study was conducted to assessthe effects that occur when children are exposed to cocaine beforebirth. Children were tested at the age of 4 for object assemblyskill, which was described as " a task requiring visual-spatialskills related to mathematical competence."The 190 children born tococaine users had a mean score of 7.3 and a standard deviation of3.0. The 186 children not exposed to cocaine had a mean score of8.2 with a standard deviation of 3.0. Use a 0.05 significance levelto test the claim that prenatal cocaine exposure is associated withlower scores of four-year old children on the test of objectassembly. Here is the instruction to the question: Assume that the twosamples are independent simple random samples selected fromnormally distributed populations. Do not assume that the populationstandard deviation are equal. Here is the question: A study was conducted to assessthe effects that occur when children are exposed to cocaine beforebirth. Children were tested at the age of 4 for object assemblyskill, which was described as " a task requiring visual-spatialskills related to mathematical competence."The 190 children born tococaine users had a mean score of 7.3 and a standard deviation of3.0. The 186 children not exposed to cocaine had a mean score of8.2 with a standard deviation of 3.0. Use a 0.05 significance levelto test the claim that prenatal cocaine exposure is associated withlower scores of four-year old children on the test of objectassembly.