# Module 15 Homework 1 – Distribution of Sample Proportions (12 of 23)

Progress CheckUse this activity to assess whether you and your peers can:
Use a simulation to obtain a sampling distribution along with its mean, standard deviation, and error.
Interpret the mean and error for a sampling distribution.
PromptThe National Health Survey uses household interviews to describe the health-related habits of U.S. adults. From these interviews they estimate population parameters associated with behaviors such as alcohol consumption, cigarette smoking, and hours of sleep for all U.S. adults.In the 2005-2007 report, they estimated that 30% of all current smokers started smoking before the age of 16. Imagine that we want to verify this estimate. So we randomly select a sample of 100 smokers and calculate the proportion who started smoking before the age of 16. How much error do we expect in the sample proportions if the 30% is correct for the population overall? Use the applet and a give an error based on 2 standard deviations.
Below is the applet we used in the simulations on the previous page. Here are the directions.
Use the first dropdown list to select the appropriate population proportion p.
Use the second dropdown list to select the appropriate sample size n.
Check the Show Standard Deviation Bars box.
Click the Run Simulation (5000 Samples) button.

Module 15 Discussion BoardUse the Module 15 discussion board (opens in a new tab) to ask questions or provide feedback about the problems in any Module 15 activity – including this peer-reviewed assignment.
Review FeedbackPeer feedback should be available before final drafts are due.
Instructor feedback is only available after an assignment is graded.
Use these directions (opens in a new tab) to learn how to review feedback.
Click the “Next” or > button to continue.
Content by the Open Learning InitiativeLinks to an external site. and licensed under CC BYLinks to an external site..
RubricPeer Review (FD Optional)
Peer Review (FD Optional)
CriteriaRatingsPtsThis criterion is linked to a Learning OutcomeFirst Attempt
5 ptsFull Marks
A first attempt was made on this assignment
0 ptsNo Marks
5 pts
This criterion is linked to a Learning OutcomeAnswering the Prompt
3 ptsFull Credit
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.
1.5 ptsPartial Credit
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 Marks
The “Prompt” is not addressed or the work is incorrect or missing. Or, the first draft was not a good-faith effort.
3 pts
This criterion is linked to a Learning OutcomePeer Review
2 ptsFull Credit
You completed the assigned peer review. The points you assigned in the rubric for the “Addressing the Prompt” criterion are appropriate. You used the “Add a Comment:” field to submit your assignment comments. Your assignment comments relate the score you assigned in the “Addressing the Prompt” criterion of the rubric to how your peer addressed the learning objectives when responding to the “Prompt.” (Note: the learning objectives are listed in the “Progress Check” section of the assignment.) If you awarded full credit for the “Addressing the Prompt” criterion in the rubric, your comments contextually and specifically explain what your peer did to demonstrate attainment of the relevant learning objectives. If you deducted points for the “Addressing the Prompt” criterion, you clearly explained what your peer can do better to demonstrate attainment of the relevant learning objectives.
1 ptsPartial Credit
You committed a good-faith effort to provide a high-quality peer review, but necessary instructive comments are missing. Or, you provided appropriate instructive comments but did not complete the rubric.
0 ptsNo Marks
No peer review provided or the comments are not instructive. Or, you did not commit a good-faith effort on your first draft.
2 pts
Total Points: 10