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standard deviation was 2.5 hou ss than 7 hours? Test using a = 0.05 State the null and alternative hypotheses. Ho: l = 7 versus

standard deviation was 2.5 hou ss than 7 hours? Test using a = 0.05 State the null and alternative hypotheses. Ho: l = 7 versus Ha: H > 7 Ho: u = 7 versus Hail # 7 Hol 7 Ho: M # 7 versus Ha! M = 7 Hot u = 7 versus Hai u none

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