A.當(dāng)μ≤600時(shí),聲稱μ>600 B.當(dāng)μ≤600時(shí),聲稱μ<600 C.當(dāng)μ=600時(shí),聲稱μ=600 D.當(dāng)μ>600時(shí),聲稱μ=600
A.當(dāng)μ≤600時(shí),聲稱μ>600 B.當(dāng)μ=600時(shí),聲稱μ=600 C.當(dāng)μ≤600時(shí),聲稱μ<600 D.當(dāng)μ≥600時(shí),聲稱μ>600
A.H0:μ=600,H1:μ≠600 B.H0:μ≠600,H1:μ=600 C.H0:μ≤600,H1:μ>600 D.H0:μ≥600,H1:μ<600