The correct answer from the options that the effect of this increase is to (a) reduce the bias of the estimate, (b) increase the bias of the estimate, (c) reduce the variability of the estimate, (d) increase the variability of the estimate, (e) have no effect since the population size is the same.
Answer to Problem 2PT
The correct answer is (c).
Explanation of Solution
Given information:
Size the random sample of voters = 1500
Size of the random sample of increased voters = 4000
Know that the sampling procedures always cause bias and the bias is not affected by the
Since, a larger sample provides more information about the respective population; so if the sample size increases then the variability is reduced.
Hence, the correct answer is (c).
Chapter 7 Solutions
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