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1. In each of the following studies, a single sample's mean is being compared to a population with a known mean but an unknown variance.

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1. In each of the following studies, a single sample's mean is being compared to a population with a known mean but an unknown variance. For each study, decide whether the result is significant (reject or retain Ho). Population Estimated Sample Mean Tails Significance Mean (p) Population (Mi level (a) Variance (52)

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