Question

11. On the basis of their total scores, 200 candidates of a civil service
examination are divided into two groups, the upper 30% and the
remaining 70%. Consider the first question of the examination. Among
the first group, 40 had the correct answer, whereas among the second
group, 80 had the correct answer. On the basis of these results, can one
conclude that the first question is not good at discriminating ability of
the type being examined here?​

Answer 1

Answer:

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Step-by-step explanation:

11. On the basis of their total scores, 200 candidates of a civil service

examination are divided into two groups, the upper 30% and the

remaining 70%. Consider the first question of the examination. Among

the first group, 40 had the correct answer, whereas among the second

group, 80 had the correct answer. On the basis of these results, can one

conclude that the first question is not good at discriminating ability of

the type being examined here?,h.zmuxd