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An education publication claims that the mean score for grade 10 students on a science achievement...

An education publication claims that the mean score for grade 10 students on a science achievement test is more than 669. You randomly select 38 grade 10 test scores. At a=0.1, can you support the publications claim? Assume the the sample mean is 662.3, the population standard deviation is 43.3, and the scores are normally distributed.
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