BUSINESS STATISTICS

MODULE 3 PROJECT PORTFOLIO CONTRIBUTION

OVERVIEW

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In Modules 1 and 2, you began to define, collect, organize, visualize, and analyze a single set of data using the concepts and skills learned in this course. (This will be an application of the DCOVA framework.)   

In this third module, you create a confidence interval with your data. Remember that a contribution to the project portfolio will be required for each module.

An example project demonstrating the requirements for these contributions for each module is provided in each module.  

INSTRUCTIONS

 In Modules 1 and 2, you accomplished the following tasks.  

You came up with a question or problem that you were interested in.
You collected 30 data points needed for this project.  
You calculated key descriptive statistics using the Project Rubric as your guide.
Clearly defined the purpose of your project and details of your collection of data.
Organized your data into a frequency distribution and visualized your data with a histogram and relative percentage polygon.
Made corrections and improvements from Module 1.
Completed an initial analysis of your work after Modules 1 and 2.
For Module 3, you will:

include contributions from Modules 1 & 2 with corrections,
evaluate the type of sampling used and make recommendations for improvement for future sampling,
create a confidence interval that can be used to estimate the true population parameter for your data and
validate the proper sample size needed to carry on further study.
See the Schedule and Course Rubrics in the Syllabus module for due dates and grading information.

EXAMPLE OF HOW THE ANSWER SHOULD LOOK LIKE IS ATTACHED .

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