Ask Question
15 July, 20:50

Suppose a 90 percent confidence interval to estimate a population proportion was calculated from a sample proportion of 18 percent and a margin of error of 4 percent. What is the width of the confidence interval?

+3
Answers (1)
  1. 15 July, 23:25
    0
    Answer: The width of the confidence interval is 8%.

    Step-by-step explanation:

    The width of the confidence interval is twice the margin of error.

    Given : A 90 percent confidence interval to estimate a population proportion was calculated from a Sample proportion = 18 %.

    Margin of error = 4 %.

    Then, the width of the confidence interval = 2 x (Margin of error)

    = 2 x (4%)

    = 8%

    Hence, the width of the confidence interval is 8%.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Suppose a 90 percent confidence interval to estimate a population proportion was calculated from a sample proportion of 18 percent and a ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers