Question: 9. A subordinate is given a memo from his supervisor to determine whether her data support her claim at 90% level of significance: n =

9. A subordinate is given a memo from his supervisor to determine whether her data support her claim at 90% level of significance: n = 25 s = 17 =354.2 HO: 4 = 356 H1: 4 < 356 What requirements are needed for his procedure to be valid?

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