**QNT 561 Complete Class Week 1 – 6 All Assignments and Discussion Questions – A+ Graded Course Material**

**Week 1 Practice Problems**

Complete the following Week One Practice Problems in MyStatLab®:

Ch. 2 of *Statistics for Business and Economics*

o 2.37, 2.38, 2.44, 2.46, 2.54, 2.64, 2.68, 2.79, 2.85, 2.89, 2.93, 2.94, 2.106, and 2.108

Ch. 4 of *Statistics for Business and Economics*

- 4.1, 4.12, 4.13, 4.21, 4.79, 4.80, 4.81, 4.89, 4.91, 4.106, and 4.124

**Week 1 DQ 1**

How may variance and standard deviation be applied to a real-world business-related problem? Provide a specific application in which these measures are useful.

or,

When would you use descriptive over inferential statistics? Provide a specific scenario and explain your rationale.

**Week 1 DQ 2**

When would you use Chebyshev’s theorem and the empirical rule in business? How are they calculated? Provide one real-life example that requires Chebyshev’s theorem and one that requires the empirical rule.

**Week 2 Learning Team** **Business Research Methods, Part I**

**Identify** and analyze a research question that applies to your organization.

**Prepare** a 350- to 700-word milestone.

**Choose** an organization with which your team is familiar.

**Develop** a research question arising from an organizational dilemma. Make sure you define the problem.

**Determine** an appropriate research design. Describe its characteristics, such as independent and dependent variables, operational definitions, and so forth.

**Identify** a sample design to use for collecting data.

**Format **your paper consistent with APA guidelines.

**Week 2 Practice Problems**

**Complete** the following Week Two Practice Problems in MyStatLab®:

Ch. 4 of *Statistics for Business and Economics*

o 4.156, 4.164, 4.169, and 4.172

Ch. 5 of *Statistics for Business and Economics*

- 5.4, 5.8, 5.25, 5.37, 5.41, 5.50, 5.56, 5.75, 5.77, 5.79, and 5.83

**Week 2 DQ 1**

Read Albert Einstein’s quote on p. 55 of *Business Research Methods.* What is the value of this statement in terms of the research process? What is the relevance and relationship of this statement to the technologically advancing business world? Where do these questions allow us to go?

or,

What are some examples of operational definitions in research design within your profession? For example, in the education field, graduation rate and retention rate are important operational definitions to measure progress of students. Likewise other professions have common metrics and definitions. Identify some metrics and operational definitions from your own career or a profession that you know well. Tell us why you think it is important!

**Week 2 DQ 2**

Of the exploratory, formalized, and casual research designs types, which would you use to assess the effectiveness of an aspect of your job? Explain with examples and details.

or,

What is the purpose of sampling? What are some concerns and dangers of sampling? How important is the sample design to data validity? Explain. Provide an example where a sample might misrepresent data validity. For example, reflect on the current political campaign and the pollsters!

**Week 3 Individual**** A Decision of Uncertainty Paper**

**Resource:** University of Phoenix Material: A Decision of Uncertainty

**Research** statistical data in a business context that requires a decision. Use probability concepts to formulate a decision.

**Write **a 700- to 1,050-word paper explaining your research methods and process for limiting the uncertainty in the decision.

**Address** the following in your paper:

Include how you applied concepts to formulate your decision.

Include appropriate probability concepts and your application to find resulting data to limit uncertainty in this decision.

Identify each outcome from your statistical analysis, providing rationale for each.

Identify tradeoffs between accuracy and precision required by various probability concepts and the effect on your data.

Include the decision you made based on statistical data.

**Format** your paper consistent with APA guidelines.

**Week 3 Practice Problems**

**Complete** the following Week Three Practice Problems in MyStatLab®:

Ch. 3 of *Statistics for Business and Economics*

- 3.5, 3.7, 3.12, 3.15, 3.19, 3.29, 3.37, 3.41, 3.65, and 3.81

**Week 3 DQ 1**

How does each key managerial dimension promote effective research? How does each dimension help meet desired results? What is the inherent value of these dimensions to a manager and the decision-making process?

or,

You have received a business research study done by a consultant for a life insurance company. The study is a survey of customer satisfaction based on a sample of 600. You are asked to comment on its quality. What do you look for?

or,

In your organization’s management development program, there was a heated discussion between people who claimed that theory is impractical and not effective, and others who claimed that effective theory is the most practical approach to problems. What position would you take and why?

**Week 3 DQ 2**

What is the relationship between deductive and inductive arguments? Why are both types valuable in research? Provide examples of each type and illustrate the benefits of their usage.

or,

You observe female sales representatives having lower customer defections than male sales representatives. What concepts and constructs would you use to study this phenomenon? How might the concepts or constructs relate to explanatory hypotheses? Explain.

**Week 4 Practice Problems**

**Complete** the following Week Four Practice Problems in MyStatLab®:

Ch. 1 of *Statistics for Business and Economics*

o 1.6, 1.7, 1.8, 1.14, 1.16, 1.19, 1.21, and 1.31

**Week 4 Learning Team**** Business Research Methods, Part II**

**Resources: **Ch. 10, 12, 13, and 14 of *Business Research Methods*

**Collect** data using your sample design and appropriate collection methods to maintain data validity.

**Prepare** a 700- to 1400-word milestone.

**Create** a questionnaire or survey appropriate for your sample.

**Present** your data in one of the appropriate general response types: rating, ranking, categorization, or sorting.

**Classify** your findings in order of power: nominal, ordinal, interval, and ratio. Do not discuss your analysis at this time.

**Week 4 DQ 1**

How does technological advancement affect the ability to collect data? Provide examples. Does this advancement increase the chance for errors? Explain.

or,

Validity is more critical to measurement than reliability. A valid measurement is reliable, but a reliable measurement may not be valid. Do you agree with these statements? Explain your answer. Provide examples to support your rationale.

**Week 4 DQ 2**

What are some critical decisions involved in selecting an appropriate measurement scale? How do these decisions influence the research design?

or,

What is the importance of pretesting questions and instruments? What are risks of not doing this? Provide an example.

or,

How do question content and wording, response strategy, and preliminary analysis planning affect question construction? Provide examples of questions that were positively and negatively influenced by these elements.

**Week 5 Practice Problems**

**Complete** the following Week Five Practice Problems in MyStatLab®:

Ch. 6 of *Statistics for Business and Economics*

o 6.2, 6.8, 6.11, 6.13, 6.20, 6.22, 6.23, 6.34, 6.35, 6.37, 6.38, 6.40, and 6.42

Ch. 7 of *Statistics for Business and Economics*

o 7.3, 7.5, 7.7, 7.9, 7.10, 7.25, 7.29, 7.43, 7.44, 7.60, and 7.61

Ch. 9 of *Statistics for Business and Economics*

- 9.1, 9.5, 9.6, 9.17, and 9.18

**Week 5 DQ 1**

What is the importance of the null hypothesis? Why has it been the backbone of mainstream hypothesis testing for decades? What are its limitations?

or,

What is the value of performing hypotheses tests to solve problems related to business and operations management? Provide specific examples.

or,

What is the relationship between confidence intervals and hypothesis testing? How are they the same? How are they different?

**Week 5 DQ 2**

What are differences between dependent and independent samples? Provide examples. What are implications for determining the tests used to analyze data?

or,

When would you use a one- or two-sample hypothesis test? Provide examples.

or,

What are some concepts behind variance analysis? Why is it important to test for variances in your data? Explain. How is variance analysis used in your profession? Provide an example.

or,

What is the purpose of using nonparametric tests in operations management decisions? Provide examples of what you look for when conducting these tests.

**Week 6 Learning Team**** Business Research Methods, Part III**

**Resource:** Business Research Methods, Part II

**Prepare** a 1,050- to 1,400-word report according to the following instructions:

Discuss the statistical analysis of your data from the Business Research Methods, Part II assignment.

Discuss potential challenges to validity and reliability of your research question, data, and analysis.

Outline steps needed to minimize these challenges.

Present your data in one of the appropriate general response types.

Classify your findings in order of power.

**Create** a 7- to 10-slide Microsoft® PowerPoint® presentation accompanying your report and include detailed speaker’s notes.

**Format** your paper and presentation consistent with APA guidelines.

**Week 6 Practice Problems**

**Complete** the following Week Six Practice Problems in MyStatLab®:

· Ch. 10 of *Statistics for Business and Economics*

o 10.2, 10.3, 10.4, 10.10, 10.15, 10.16, 10.17, 10.25, 10.29, 10.37, 10.41, 10.43, 10.53, and 10.54

· Ch. 11 of *Statistics for Business and Economics*

o 11.2, 11.4, 11.7, 11.9, 11.27, 11.36, 11.37, and 11.38

*Item #:*088