(Choose 1 answer)
(See picture)
A. (i)
B. None of the other choices is true
C. (ii)
D. (iii)
A test is conducted for Ho: \mu=9.0~vs H_{1}:\mu<9 σ is known. The test statistic is -1.44. What are conclusions at the significance levels of 5% and
(i) Reject Ho at both \alpha=0.05 and \alpha=0.1
(ii) Reject Ho at \alpha=0.05 but do not reject
(iii) Reject Ho at \alpha=0.10 but do not reject
Let Z0.025=1.96 Z0.05 1.64 Zo.1 = 1.28
E17
