Concept explainers
To find: The condition to compute the confidence interval for population proportion has been violated.
Answer to Problem 6PT
The condition of simple random sampling is violated
Explanation of Solution
Given:
Number of success ( x ) = 70
Number of trials ( n ) = 100
Here, sampling has been using the method of voluntary response sample and one of the conditions to construct the confidence interval for population proportion is that the sample should be selected using the technique of simple random sampling. Thus, the condition of simple random sample is not met here.
Hence, the correct option is (a).
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