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You're testing a new memory drug to see if it had any effect on working memory. You know the population mean on your working memory

You're testing a new memory drug to see if it had any effect on working memory. You know the population mean on your working memory test is 6. After giving your sample the drug for 2 months you give them the working memory test. Their results are listed in the SPSS output below. Mean 5.8913 N 46 Standard Deviation .99394 Standard deviation error mean .14655 Calculate t +.742 +2.33 -2.33 -.742

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