_4. Which of the following describes an alternative hypothesis using two-tailed test? A. Ha: u< 50 years old B. Ha: u> 50 years old C. Ha: u+ 50 years old D. Ha: u = 50 years old _5. Which of the following would be an appropriate alternative hypothesis for one-tailed test? A. Ha: μ 85 В. На: и 2 85 C. Ha: u2 85 D. Ha : μ 5

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