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File File Edit View History Bookmarks Secure https://www. People Window Help com/St Do Homework Kimberly Pacheco aspx?ho 38flushed omeworkide4 1025961 falsesold 43260938centerw Homework: Math 112: TTh 1-3 Score: 0.67 of Section 7.4 Homework 1 pt 7.4.47 3 of 16 14 complete) HW Score: 70.09%, 11.22 of 16 pt According to a poll taken in a certain country when adults were asked they a. What is the value of p, the sample proportion that say they are struggling? b. Check the conditions to determine whether you can apply the CLT to find a confidence interval. c. Find a 95% confidence interval for the population proportion that say they are struggling. whether were thriving. struggling or snoring 261 outof 4arsad hey were snuggling. a. The value of p, the sample proportion that say they are struggling, is 0.641. (Round to three decimal places as needed.) b. Check the conditions to determine whether you can apply the CLT to find a confidence interval The Random and Independent condition can reasonably be assumed to hold. The Large Sample condition holds. The Big Population condition holds c. The 95% confidence interval is (TTD (Round to three decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. Clear All All parts showing

Explanation / Answer

p = 0.86 , n =1200

a) Standard error = sqrt(0.86 * 0.14 /1200)
               = 0.01

b) ME = Z * SE
      = 1.96 * 0.01
      = 0.0196
      Hence margin of error = 1.96%

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