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If a sample of n = 22 scores is being used to make an 90% confidence interval estimate of the population mean (u), which

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If a sample of n = 22 scores is being used to make an 90% confidence interval estimate of the population mean (u), which values of t should be used? Ot=1.325 Ot=1.323 Ot=1.717 Ot=1.721

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