the first part is the assignment. the second part is the teachers response to my first assignment on the company. My company is Pandora Media. Need help in this assignment and understanding teachers response need new assignment done soon. thank you Estimating From SamplesResources

• Estimating From Samples Scoring Guide.
• APA Style and Format.
• Capella Writing Center.
• Confidence Interval Calculator.
• Sample Size Estimator.

For this assessment, you will need to use SAS Enterprise Guide or the Excel Calculators, the latter of which can be found in Resources. SAS users can reference the SAS tutorials located in the third study activity of Unit 1. For this assignment, you will practice applying inferential statistical analysis to two business decision scenarios. Complete both following scenarios.

Practical Application Scenario 1

Refer to the stock you selected in Module 1. Using the same downloaded data, build a 95 percent confidence interval for the daily stock volume using your downloaded data. What does this confidence interval mean? Why might decision makers be interested in such an interval?

Practical Application Scenario 2

To complete this scenario, use the Sample Size Estimator file provided in Resources.

For the stock you selected in Module 1, what size sample would you need to bracket the adjusted daily closing price within 50 cents (for example, a margin of error of 50 cents)? Use the standard deviation from your data for your calculations, and assume this standard deviation represents the population standard deviation.

Assignment Submission

You must submit two documents. First, you must compile all your answers in a Microsoft Word file, pasting in the tables and graphics you created to demonstrate your work (submitted as a .docx file). Second, you must upload the raw data (as a .csv file) that you used to do your analysis for the purposes of instructor replication. Failure to upload the second file will result in a zero on the assignment until the file is submitted. Submit your report to the assignments area for grading. Please note that assignments must be submitted to the assignments area for grading. Work e-mailed or otherwise presented cannot be graded in accordance with Capella grading standards. Because of the nature of statistics-based assignments, your instructor cannot give feedback on drafts of your work. Instead, if you have questions as you complete assignments, you are encouraged to attend the weekly supplementary instruction sessions or to consult the archived sessions for suggestions. Refer to the scoring guide prior to submission to ensure you meet all evaluation criteria.

Scoring Guide Tool

Print

MBA6018 - Section 103 [u01a1] - Producing and Interpreting Descriptive StatisticsPlambeck, Suzanne Overall Comments

Hi Suzanne

Good start on this first assignment. See the enclosed completed rubric that indicates which parts of the problem you calculated correctly. If you have less than a Distinguished rating on any rubric item, compare your work against the sample solutions set that is in our Updates and Handouts section of the class. Also, revisit the text examples and the SI recorded sessions.

Keep up the energy and the course will fly by.

Dr. H PS - Ok to take another day for your Unit 2 assignment - just please make sure it is in by Monday midnight EST. Hope that helps.

Criterion Non-performance Basic Proficient Distinguished Criterion Apply descriptive statistics techniques to use in decision making. (22%) Competency

Analyze business decision opportunities using descriptive statistics.

not selected Non-Performance Does not identify descriptive statistics techniques to use in decision making. not selected Basic Identifies, but does not apply descriptive statistics techniques to use in decision making. not selected Proficient Applies descriptive statistics techniques to use in decision making. selected Distinguished Applies descriptive statistics techniques to accurately compute mean, median, mode, range, and standard deviation, and interprets the relevance of these statistics in supporting a business decision. Comments:

Correct descriptive statistics

Criterion Analyze data in box plot format to use in decision making. (22%) Competency

Integrate data analyses into general business management planning and decision making.

selected Non-Performance Does not create a box plot. not selected Basic Creates a box plot with data, but it is inaccurate or inappropriate for use in decision making. not selected Proficient Analyzes data in box plot format to use in decision making. not selected Distinguished Interprets data in box plot format and discusses results in support of decision making related to a business problem. Comments:

You must complete all rubric items

Criterion Analyze data in histogram format to use in decision making. (23%) Competency

Integrate data analyses into general business management planning and decision making.

not selected Non-Performance Does not create a histogram. not selected Basic Creates a histogram with data, but it is inaccurate or inappropriate for use in decision making. not selected Proficient Analyzes data in histogram format to use in decision making. selected Distinguished Interprets data in histogram format and discusses results in support of decision making related to a business problem. Comments:

Good histogram

Criterion Analyze data in scatter plot format to use in decision making. (23%) Competency

Integrate data analyses into general business management planning and decision making.

not selected Non-Performance Does not create data in a scatter plot. not selected Basic Creates a scatter plot with appropriate data, but it is inaccurate or inappropriate for use in decision making. not selected Proficient Analyzes data in scatter plot format to use in decision making. selected Distinguished Analyzes data in scatter plot format and discusses results in support of decision making related to a business problem. Comments:

Good scatter plot

Criterion Write clearly, with a sound structure that is generally free of spelling, grammatical, and syntax errors. Adhere to APA style and formatting guidelines for references and citations. (10%) Competency

Communicate in a manner that is professional and consistent with expectations for members of the business professions.

not selected Non-Performance Does not write clearly with a sound structure, and writing has several spelling, grammatical, and syntax errors. Does not adhere to APA style and formatting guidelines for references and citations. not selected Basic Writes in an unclear manner that has errors that detract from the message, exhibits poor structure, and has many spelling, grammatical, and syntax errors. Irregularly adheres to APA style and formatting guidelines for references and citations. not selected Proficient Writes clearly, with a sound structure, and writing is generally free of spelling, grammatical, and syntax errors. Adheres to APA style and formatting guidelines for references and citations. selected Distinguished Writes in an exceptionally clear manner, with superior structure, and without spelling, grammatical, or syntax errors. Adheres to APA style and formatting guidelines for references and citations and uses a scholarly tone. Comments:

Well-written

Confidence Interval Calculator Confidence interval for a population mean, Sigma known If the population standard deviation is known, we can directly calculate the standard deviation of the sampling distribution (the standard error of the estimate) and use the standardized normal distribution to get a Z-multiple, using the Excel function NORMSINV. The margin of error is the Z-multiple times the standard error, and it is how far the confidence interval extends on each side of the point estimate. Input Variables: Sample Mean (x-bar) 100 Population Standard Deviation (sigma): 15 Sample Size (n): 50 Confidence Level: 0.9