The rejection region for testing the hypotheses $H _ { 0 } : \mu =$ 80. $F _ { 1 } : \mu$ 1.96 \ \hline \text { B. } & z-1.65 \ \hline \text { D. } & z

Question

The rejection region for testing the hypotheses $H _ { 0 } : \mu =$ 80. $F _ { 1 } : \mu$ < 80. at the 0.10 level of significance is: $\begin{array}{|l|l|} \hline\text { A. } & z>1.96 \ \hline \text { B. } & z<0.90 \ \hline \text { C. } & z>-1.65 \ \hline \text { D. } & z<-1.28 \ \hline \end{array}$

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The Answer of The rejection region for testing the hypotheses $H _ { 0 } : \mu =$ 80. $F _ { 1 } : \mu$ < 80. at the 0.10 level of significance is: $\begin{array}{|l|l|} \hline\text { A. } & z>1.96 \ \hline \text { B. } & z<0.90 \ \hline \text { C. } & z>-1.65 \ \hline \text { D. } & z<-1.28 \ \hline \end{array}$

The Rejection Region for Testing the Hypotheses H0:μ=H _ { 0 } : \mu =H0​:μ=

The Rejection Region for Testing the Hypotheses $H _ { 0 } : \mu =$