module 17 estimating a population proportion 5 of 8 discussion 1 mod 17 group 2 1

Module 17 – Estimating a Population Proportion (5 of 8 discussion 1) – Mod 17 Group 2

From 2020SP-MATH-160-6897

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Learn by Doing

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PROMPT

Harris Interactive® conducted a poll of American adults in August of 2011 to study the use of online medical information. Of the 1,019 randomly chosen adults, 60% had used the Internet within the past month to obtain medical information.

  1. Use the results of this survey to create an approximate 95% confidence interval estimate for the percentage of all American adults who have used the Internet to obtain medical information in the past month.
  2. Calculate the 90% confidence interval.
  3. Which confidence interval has the smaller margin of error? Why does this make sense?
  4. Which confidence interval is more likely to contain the true percentage of all American adults who have used the Internet to obtain medical information in the past month? Why do you think so?

GRADING

To view the grading rubric for this discussion board, click on menu icon (three vertical dots) and then select show rubric. Please note, if viewing the course via the Canvas mobile app the rubric does not appear on this page.

checkmark.png TIPS FOR SUCCESS

      • Did you make a mistake in your initial post? No problem! Just be sure to reply to yourself and note any corrections that need to be made.
      • You are required to reply to two of your peers in this discussion; don’t forget to complete this requirement of the activity or you will lose points. Provide high-quality feedback to your peers.
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