Based on context clues, I think A is the correct answer.
Answer: ok give me a moment :)
Answer: B) The width of the interval based on 100 men would be about three times the width of the interval based on 900 men.
Explanation:
Based on the information given, if there's no change in the sample proportion, the option that best describes the anticipated effect on the width of the confidence interval assuming the magazine surveyed a random sample of 100 men who practice yoga, rather than 900 men will be option B "The width of the interval based on 100 men would be about three times the width of the interval based on 900 men.
Therefore, the correct option is B.
What you are really asking is....
