On the basis of thier total scores,200 candidates of a civil service e

1.	On the basis of thier total scores,200 candidates of a civil service examination are divided into 2 groups ,the upper 30% and the remaining 70%. Consider the first question of this examination among the first group 40 had the correct answers where as among the second group 80 had the correct answers. On the basis of thier results can one conclude that the first question is no good at discriminating ability of the type being examined here? [email protected]=0.05 level of significance.
Answer» Answer: Step-by-step explanation: 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

On the basis of thier total scores,200 candidates of a civil service examination are divided into 2 groups ,the upper 30% and the remaining 70%. Consider the first question of this examination among the first group 40 had the correct answers where as among the second group 80 had the correct answers. On the basis of thier results can one conclude that the first question is no good at discriminating ability of the type being examined here? [email protected]=0.05 level of significance.

Answer»

Answer:

Step-by-step explanation:

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