Exam IIA-CIA-Part1 topic 3 question 70 discussion

Actual exam question from IIA's IIA-CIA-Part1

Question #: 70
Topic #: 3

A production division received 45 responses to a customer-service survey distributed to 100 purchasing departments randomly selected from all customers who made purchases in the prior 12 months. Which of the following is the most likely reason that the division manager would be concerned about nonresponse bias in this situation?

A. The sample means and standard errors are more difficult to compute.
B. Those who did not respond may be systematically different from those who did.
C. The sample size is too small.
D. Confidence intervals are narrower.

Show Suggested Answer

Suggested Answer: B 🗳️

by Amarpreet at Nov. 20, 2020, 4:01 a.m.

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thabash

11 months, 2 weeks ago

you sent a survey to 45 customers who purchased, lets assume only 20 replied they are happy, the fear here maybe the balance who didn't reply are not happy, so the survey result received which says all are happy customers are not true. because we don't know what other customers feels

upvoted 2 times

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Amarpreet

1 year, 3 months ago

Why not c?

upvoted 1 times

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