Multiple Choice
Which of the following statements is true regarding the width of a confidence interval for a population proportion?
A) It is narrower for 95% confidence than for 90% confidence.
B) It is wider for a sample of size 80 than for a sample of size 40.
C) It is wider for 95% confidence than for 99% confidence.
D) It is narrower when the sample proportion is 0.20 than when the sample proportion is 0.50.
Correct Answer:
Verified
Correct Answer:
Verified
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