Concept explainers
Check which of theinference condition is violated.
Answer to Problem 20E
Hence, the condition of random is violated thus the confidence interval is worthless.
Explanation of Solution
The inference conditions are Random, Normal and Independent.
Since the response are taken from online poll which is a voluntary response not a random sample. Thus, the condition of random is violated.
To construct a confidence interval it is important to follow all the three inference conditions. Since it does not follow the condition of random.
Hence, the condition of random is violated thus confidence interval is worthless.
Chapter 8 Solutions
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