The Rejection Region for Testing H₀ $\mu$ = 80 VsH₁ $\mu$ $\lt$

question 115

Multiple Choice

The rejection region for testing H₀: $\mu$ = 80 vs.H₁: $\mu$ $\lt$ 80,at the 0.10 level of significance is:

• A) z > 1.96
• B) z < 0.90
• C) z > 1.28
• D) z < -1.28

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