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Question 3 (4 points) The mean amount of dissolved oxygen in a stream is reported to be at least 5 mg per liter, but an

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Question 3 (4 points) The mean amount of dissolved oxygen in a stream is reported to be at least 5 mg per liter, but an environmentalist believes that it is less than 5 mg per liter. To test the hypotheses Ho: u 2 5 vs Ha: p. 0 O D) HO : Hmen - Mwomen 2 0 vS HA : Mmen - Mwomen > 0 O E) HO : Mmen - Mwomen = 0 US HA : Mmen - Mwomen # 0

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