- Due Oct 12 by 11:59pm
- Points 10
- Submitting a text entry box or a file upload
- Available after Sep 19 at 12am
Progress Check
Use this activity to assess whether you and your peers can:
- Calculate a 90% and a 95% confidence interval.
- Relate the interval width of a confidence interval to its margin of error (MOE).
- Compare interval widths of two confidence intervals and draw conclusions.
Directions
Use the drop-down menu to learn about the three steps needed to complete this assignment.
Three steps to complete the assignmentPrompt
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.
- 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.
- Calculate the 90% confidence interval.
- Which confidence interval has the smaller margin of error? Why does this make sense?
- 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? Briefly explain your reasoning.
Module 17 Discussion Board
Use the Module 17 discussion board (opens in a new tab) to ask questions or provide feedback about the problems in any Module 17 activity - including this peer-reviewed assignment.
Review Feedback
- Instructor feedback is only available after an assignment is graded.
- Use these directions (opens in a new tab) to learn how to review feedback.
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Content by Cuyamaca College math faculty and licensed under the Creative Commons 4.0 International LicenseLinks to an external site..
Rubric
Formative Assessments
| Criteria | Ratings | Pts |
|---|---|---|
This criterion is linked to a Learning OutcomeAnswering the Prompt | 10 ptsFull CreditThe first submission demonstrates a good-faith effort to address each part of the Prompt. Either in the first draft or the optional final draft, all parts of the "Prompt" are addressed and the responses demonstrate attainment of the learning objectives in the "Progress Check" section of the assignment. The answers are correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow.8.5 ptsMostly CorrectThe first submission demonstrates a good-faith effort to address most of the Prompt. In the optional final draft all parts of the "Prompt" are addressed, and the responses demonstrate attainment of the learning objectives in the "Progress Check" section of the assignment. The answers are mostly correct. The writing/work is clear. The explanation/work is reasonable, well-organized, and easy to follow. 6 ptsOne or more incorrectThe first submission demonstrates a good-faith effort to respond to a smaller portion of the Prompt. In the first draft or the optional final draft, one or more parts of the "Prompt" are not addressed or are incorrect. Or, answers do not demonstrate attainment of the learning objectives in the "Progress Check" section of the assignment. Or, answers are correct, but the writing/work is unclear, incorrect, or difficult to follow.0 ptsNo MarksThe first submission does not demonstrate a good-faith effort to address the Prompt. | 10 pts |
Total Points: 10