Course Project Part I
 
Required Resources
 
Read/review the following resources for this activity:
 
Textbook: Chapter 8
Lesson
Scenario/Summary
 
You will complete a Course Project in this course that will span two weeks. The final project is due the Sunday of Week 7. The project is broken into two parts and it would be most effective to complete Part I in Week 6 and Part II in Week 7. In Week 6, Confidence Intervals will be explored and in Week 7 Hypothesis testing will be explored.
 
A confidence interval is a defined range of values such that there is a specified probability that the value of a parameter lies within the interval.
 
In Part I of this project, you will pick a topic, complete research and provide a write-up that includes calculations. Round all values to two decimal places when appropriate.
 
Deliverables
 
Choose a Topic where you can gather at least 50 pieces of data.
Examples of Topics
 
The Golden Gate Warriors Points Per Game in 2016 (use the points scored in the first 50 games).
High School Graduation Rates by State (use the graduation rates for all 50 states)
Average Tuition Rates in the US (You have to find the tuition rates of 50 college/universities).
The prices of a hotel room per night in a major city (You have to find the price of the same night of hotels in one city).
Weights of 50 babies at birth.
Write at least a 1-Page Report
Open a Word Document
 
Introduction–Provide a description of your topic and cite where you found your data.
Sample Data—Include a 5×10 table including your 50 values in your report. You must provide ALL of your sample data.
Problem Computations—For the topic you chose, you must answer the following:
Determine the mean and standard deviation of your sample.
Find the 80%, 95%, and 99% confidence intervals.
Make sure to list the margin of error for the 80%, 95%, and 99% confidence interval.
Create your own confidence interval (you cannot use 80%, 95%, and 99%) and make sure to show your work. Make sure to list the margin of error.
Problem Analysis—Write a half-page reflection.
What trend do you see takes place to the confidence interval as the confidence level rises? Explain mathematically why that takes place.
Provide a sentence for each confidence interval created in part c) which explains what the confidence interval means in context of topic of your project.
Explain how Part I of the project has helped you understand confidence intervals better?
How did this project help you understand statistics better?
Required Software
 
Microsoft Office: Word and Excel
 
Use a personal copy or access the software at https://application.chamberlain.edu (Links to an external site.).
 
Grading
 
This activity will be graded based on the Course Project grading rubric. You can view the rubric below.
 
Course Outcomes (CO): 6
 
Due Date: By 11:59 p.m. MT on Sunday of Week 7
 
 
 
Course Project Rubric
 
Criteria
 
Ratings
 
Pts
 
Part I: Topic & Introduction
 
4.0 pts
 
Proficient Student picks appropriate topic, provides a description of topic and the cites where data was found.
 
3.0 pts
 
Above Average Student picks appropriate topic and introduces data. No citation.
 
2.0 pts
 
Average. Student does not pick a topic that is appropriate for the project, introduces the data but does not cite source.
 
1.0 pts
 
Needs Improvement Students provides topic without descritption and citation.
 
0.0 pts
 
No Effort. No topic, descritpion or citation is provided.
 
4.0 pts
 
Part I: Sample Data
 
4.0 pts
 
Proficient Student provides ALL 50 pieces of data.
 
3.0 pts
 
Above Average Student provides 30-49 pieces of data.
 
2.0 pts
 
Average Student provides 20 – 29 pieces of data.
 
1.0 pts
 
Needs Improvement Student provides 1-19 pieces of data.
 
0.0 pts
 
No Effort. No Data was provided.
 
4.0 pts
 
Part I: Mean & Standard Deviation
 
5.0 pts
 
Proficient Mean & Sample Standard Deviation of the data set is correct with no rounding error. .
 
4.0 pts
 
Above Average Mean & Sample Standard Deviation of the data set is correct but with roujnding error.
 
3.0 pts
 
Average One Value (either mean or sample standsrd deviation) is correct but the other is not correct.
 
1.0 pts
 
Needs Improvement Both the Mean & Sample Standard Deviation are incorrect but it was attempted.
 
0.0 pts
 
No Effort. The mean and sample standard deviation
 
5.0 pts
 
Part I: Constructing the 80%, 95%, 99% Confidence Intervals
 
15.0 pts
 
Proficient Computes the 80%, 95%, and 99% confidence intervals correclty making sure to note the margin of error for each.
 
12.0 pts
 
Above Average Computes the 80%, 95%, and 99% confidence intervals correclty but is missing margin of errors (or some of the margin of errors are incorrect).
 
10.0 pts
 
Average Computes the 80%, 95%, and 99% confidence intervals but there are some errors in the calculations.
 
6.0 pts
 
Needs Improvement Computes the 80%, 95%, and 99% confidence intervals but all of the values are incorrect. The component was attempted.
 
0.0 pts
 
No Effort. No Confidence Intervals are provided.
 
15.0 pts
 
Part I: Creating a new confidence interval
 
7.0 pts
 
Proficient. Student computes a confidence interval (not 80%, 95%, 99%) correctly making sure to list the margin of error.
 
5.0 pts
 
Above Average. Student computes a confidence interval (not 80%, 95%, 99%) correctly making sure to list the margin of error but there is rounding error.
 
4.0 pts
 
Average. Student computes a confidence interval (not 80%, 95%, 99%) correctly but does not highlight the margin of error.
 
3.0 pts
 
Needs Improvement Student computes a confidence interval (not 80%, 95%, 99%) but it was not done correctly.
 
0.0 pts
 
No Effort. The student did not create a new confidence interval.
 
7.0 pts
 
Part I: Problem Analysis
 
10.0 pts
 
Proficient. Student addresses trend that takes place when the confidence level rises. Provides a sentence for each confidence interval created explaining what the confidence interval means in context of the data collected. Provides a reflection for Part I of the project.
 
8.0 pts
 
Above Average. Student addresses trend that takes place when the confidence level rises. Provides sentences for each confidence interval created explaining what the confience interval means in context of the data collected. Does NOT provide a Reflection.
 
7.0 pts
 
Average. Student may or may not address the trend that takes place when the confidence level rises. Provides a sentence for SOME confidence intervaSl created explaining what the confidence interval means in context of the data collected. A reflection Part I of the project may or may not be provided.
 
5.0 pts
 
Needs Improvement. Majority of the analysis is missing.
 
0.0 pts
 
No Effort. No Problem Anaylsis is provided.
 
10.0 pts
 
Part II: Choose a Data Set & Preliminary Data
 
5.0 pts
 
Proficient. Student computes all 4 Preliminary Data Values.
 
4.0 pts
 
Above Average. Student computes all 3 Preliminary Data Values.
 
3.0 pts
 
Average. Student computes all 2 Preliminary Data Values.
 
1.0 pts
 
Needs Improvement. Student computes all 1 Preliminary Data Values.
 
0.0 pts
 
No Effort. No Preliminary Data
 
5.0 pts
 
Part II: Hypothesis Testing
 
20.0 pts
 
Proficient. Completes 4 Hypothesis Tests highlighting the null/alternate hypothesis, value of test statistic, and report p-value.
 
16.0 pts
 
Above Average. Completes 3 Hypothesis Tests highlighting the null/alternate hypothesis, value of test statistic, and report p-value.
 
14.0 pts
 
Average. Completes 2 Hypothesis Tests highlighting the null/alternate hypothesis, value of test statistic, and report p-value.
 
10.0 pts
 
Needs Improvement: Completes 1 Hypothesis Test highlighting the null/alternate hypothesis, value of test statistic, and report p-value.
 
0.0 pts
 
No Effort. No Hypothesis Tests were completed.
 
20.0 pts
 
Part II: Hypothesis Testing Analysis
 
10.0 pts
 
Proficient. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for ALL 4 Problems.
 
8.0 pts
 
Above Average. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for 3 Problems.
 
7.0 pts
 
Average. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for 2 Problems.
 
5.0 pts
 
Needs Improvement. State correct conclusion (Reject/Fail to Reject) and valid explanations in context of the data for 1 Problem
 
0.0 pts
 
No Effort. No conclusion/explanations were given.
 
10.0 pts
 
Part II: Proposal and computations for new hypothesis test
 
10.0 pts
 
Proficient. Student creates an original Hypothesis Test based on one of the data sets highlighting the null/alternate hypothesis, value of test statistic, report p-value, conclusion and explanation.
 
8.0 pts
 
Proficient. Student creates an original Hypothesis Test based on one of the data sets correclty and has MOST of the content: highlighting the null/alternate hypothesis, value of test statistic, report p-value, conclusion and explanation.
 
7.0 pts
 
Average. Student creates an original Hypothesis Test based on one of the data sets and MISSING MOST of the content: highlighting the null/alternate hypothesis, value of test statistic, report p-value, conclusion and explanation.
 
5.0 pts
 
Needs Improvement. Student creates an original Hypothesis Test based on one of the data sets but there are multiple mistakes and/or conclusions are not valid.
 
0.0 pts
 
No Effort. The student did not propose/compute a new hypothesis test.
 
10.0 pts
 
Total Points: 90.0
 
 
 
Required Resources
 
Read/review the following resources for this activity:
 
Textbook: Chapter 9
Lesson
Scenario/Summary
 
This week you will submit both parts of the course project. You completed Part I in Week 6 and will complete Part II this week. You will submit one word document with both parts of the project.
 
Hypothesis Testing is the use of statistics to determine the probability that a given claim is true.
 
In Part II of this project, you will choose a data set, review claims and perform hypothesis testing and make a decision. You will then complete a write-up that includes the calculations.
 
The government logs the number of documented births, deaths, marriages and divorces; however, it is possible to have undocumented cases. In part II of this project, you are going to test claims about total births, deaths, marriages and divorces.
 
Deliverables
 
Choose a Data Set.
Go to https://www.cdc.gov/nchs/products/nvsr.htm (Links to an external site.)
In the search bar type: Births, Marriages, Divorces, and Deaths
 
screenshot of CDC website toolbar
Pick a DataSet and download the PDF document and make note of the volume, number, and date. For example you could use the National Vital Statistics Reports,
screenshot of National Vital Statistics Reports webpage
Pick the same month/year combination for each data set. For example, choosing September of 2009.
 
screenshot of example dataset
Preliminary Calculations
Create a summary table for 1. Live Births, 2. Deaths, 3. Marriages, and 4. Divorces highlighting the mean, median, sample standard deviation, minimum and maximum values for each the data sets. You will have FOUR tables using the list of values of each state, the District of Columbia and Puerto Rico (You will have 52 numbers for each data set).
Summary Table for _________
Mean   
Median               
Standard Deviation        
Minimum           
Maximum          
Hypothesis Testing
With the information that you gather from the summary tables, test the following (you can use excel when appropriate):
 
Determine if there is sufficient evidence to conclude the average amount of births is over 8000 in the United States and territories at the 0.05 level of significance.
Determine if there is sufficient evidence to conclude the average amount of deaths is below is less than or equal to 6000 in the United States and territories at the 0.10 level of significance.
Determine if there is sufficient evidence to conclude the average amount of marriages is greater or equal to 7000 in the United States and territories at the .05 level of significance.
Determine if there is sufficient evidence to conclude the average amount of divorces is less than or equal to 4000 in the United States and territories at the 0.10 level of significance.
For each of the tests above, in your report, be sure to—
 
Clearly state a null and alternative hypothesis
Give the value of the test statistic
Report the P-Value
Clearly state your conclusion (Reject the Null or Fail to Reject the Null)
Explain what your conclusion means in context of the data.
Lastly, propose and conduct your own test of hypothesis about the Birth, Death, Marriage and Divorce data that you have been analyzing. Make sure to follow the five steps above.
 
Required Software
 
Microsoft Office: Word and Excel
 
Use a personal copy or access the software at https://application.chamberlain.edu (Links to an external site.) .
 
Grading
 
This activity will be graded based on the Course Project grading rubric.
 
Course Outcomes (CO): 6
 
Due Date: By 11:59 p.m. MT on Sunday of Week 7