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A A sample of 30 scores has a mean of 47.5 and a standard deviation of 10. Can we accept the hypothesis that this is

A A sample of 30 scores has a mean of 47.5 and a standard deviation of 10. Can we accept the hypothesis that this is a random sample with a population mean of 50? Use = .05two-tail. What is the value of tobt? Include the negative sign if this is a negative number

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