BUS-352 Business Statistics Full Course
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BUS-352 Business Statistics Full Course Bus352 week 1 dq 1 & dq 2 dq 1 The media often attempts to predict the outcome of national elections. Why are they often wrong? Based on the concepts presented in this topic’s readings, how could the system be improved? dq 2 In conducting a survey, what do you think is even more important than the size of the sample? Why? bus352 week 2 dq 1 & dq 2 dq 1 Referring to Chapter 2 Excel Guide, EG2, Section EG2.5 in the textbook, create a histogram on some sample data using Microsoft Excel. Post your file to the Main Forum in response to this DQ. What are some specific challenges related to creating a histogram in Microsoft Excel? dq 2 What ethical issues should you consider when creating a graph of data? bus352 week 3 dq 1 & dq 2 dq 1 Assume the financing gurus of a weekend investment television program predicted a 50% chance of XYZ stock gaining in January and a 50% chance of gaining in February. Your financial advisor sees this and tells you there is a 100% chance XYZ stock will gain over the 2-month period. Would you continue to use this financial advisor? Explain. dq 2
Marie claims she can predict the sex of pregnant women’s babies. She sees 1,000 women a year, and she always predicts a female. She charges $1,000 for a prediction, and she always predicts a female (although clients do not know that). When she is wrong, she offers a double-your-money back guarantee.Since the chance of having a female is approximately 50%, how can she earn any money? bus352 week 4 dq 1 & dq 2 dq 1 Provide some examples of discrete and continuous variables. What attributes of these variables make them discrete and continuous? Why? dq 2 Describe the term mutually exclusive. Provide some examples. Must the values of x in a discrete probability distribution always be mutually exclusive? Why or why not? Provide an example. bus352 week 5 dq 1 & dq 2 dq 1 You just saw an ad on television that states the majority of the population would vote to make smoking illegal. The poll that is referenced shows 53% of those asked supported making smoking illegal. In the fine print at the bottom of the screen, you see that the margin of error is +/- 3%. What is your reaction? Explain. dq 2 Many people believe that a larger sample is always better. What do you think? Explain. bus352 week 6 dq 1 & dq 2 dq 1 Your mayor just announced that the local unemployment rate dropped last month from the prior month. It went from 10.5% to 10.4%. Is this a significant drop? Explain. dq 2 Provide an example of a situation in which you believe a Type I Error is more serious. Give an example of a situation in which you believe a Type II Error is more serious. In each case, why do you think so? bus352 week 7 dq 1 & dq 2 dq 1 Describe when a z-test should be performed as opposed to a t-test? Which (if any) can we use all the time? Why or why not? dq 2 Your manager, who just read an abridged version of a statistics book, wants you to test hypotheses for the difference in two population means. The sample sizes for each are 23. He is adamant that you perform a z-test. What would you tell him? What specific explanation would you give?
bus352 week 8 dq 1 & dq 2 dq 1 A market researcher is interested in knowing the type of training that works best for DVD users. Thirty consumers are randomly selected from a population of known DVD owners (i.e., users). Ten users are trained by giving them the DVD user’s manual and allowing them to read it. Another 10 users are trained from a 30-minute DVD user training video. Another 10 users are trained from a self-paced computer tutorial. The users are then timed in their ability to setup and program the DVD by performing a series of operations. Which statistical analysis technique should be used? What is the null hypothesis? Can the market researcher get an answer? Why or why not? dq 2 A client gives you a data set of 30 observed values that represent the number of gallons of gas that 30 individual Nissan Sentra owners purchased at the gas pump last month. Your client wants to know if the data set represents a normal distribution. Which statistical analysis technique should be used? What is the null hypothesis? Can an analysis be performed? Why or why not?
bus352 week 1 problem set assignment Details: Complete Problems 1.5, 1.7, and 1.8 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade.
bus352 week 4 problem set assignment Details: Complete Problems 4.9, 4.15, 4.19, 4.23, 4.45, and 4.48 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas willnegatively impact your grade.
bus352 week 5 problem set 8 assignment Details: Complete Problems 8.1, 8.10, 8.11, 8.17, 8.32, 8.37, and 8.40 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade.
bus352 week 5 problem set 7 assignment Details: Complete Problems 7.1 and 7.16 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade.
bus352 week 6 benchmerk assignment Details: Complete Problems 9.3, 9.13, 9.14, 9.25, 9.48, and 9.55 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade.
bus352 week 7 Christian Worldview/Statistics Integration Paper assignment
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Details: For this assignment, you will discuss how Christian principles can be applied to ethical issues in statistics. Required Reading: Read the following: “Ethical Issues” sections in Chapters 2.8, 3.6, 4.5, 7.2, 8.5, and 9.5 in the textbook. Chapters 7.1 and 7.2 in the textbook. The “Reflection Before Action: The Statistical Consultant Confronts Ethical Issues” article. In this article, the
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authors cite the American Statistical Association’s Ethical Guidelines for Statistical Practice (see the “Ethics Provides a Defensible Response” section of the article). Take note of the information in this section (see .westga.edu/~bquest/2001/consultant.htm”>http://www.westga.edu/~bquest/2001/consultant.htm). The “A Christian View of the Foundations of Statistics” article (see .asa3.org/ASA/PSCF/1987/PSCF9-
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87Geertsema.html”>http://www.asa3.org/ASA/PSCF/1987/PSCF9-87Geertsema.html). Essay: Write a paper that considers ethical issues in business statistics and discuss how your personal values can be applied to them. This assignment is primarily introspective in nature and students will be given significant latitude in addressing specific questions. Specifically, provide the following in your paper: Include a brief introduction that outlines your paper.
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Address the following question: Which ethical guideline(s) from the articles is (are) most applicable to you and why? How does this article (or how do the articles) affect your personal decision making related to statistics and ethics? How can the ethical issue(s) raised be addressed from a Christian worldview? In other words, what guidance, using principles from a Christian worldview perspective, could be applied to understand and address these ethical issues? The following GCU websites may be helpful: (a) Doctrinal Statement (.gcu.edu/About-Us/Doctrinal-
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Statement.php�>http://www.gcu.edu/About-Us/Doctrinal-Statement.php) and (b) Mission and Vision (.gcu.edu/AboutUs/Mission-and-Vision.php�>http://www.gcu.edu/About-Us/Mission-and-Vision.php.) In addition to addressing these questions, the student may also frame the issue using ethical theories
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(utilitarianism, Kantian ethics, distributive justice, virtue ethics, and covenantal ethics). Note, however, that the previously posed questions about Christian worldview must still be addressed. Provide a brief conclusion that summarizes your perspectives. Use external citations. Your paper should have at least six external citations (in addition to any Biblical citations) to help frame the issue. Wikipedia citations are not allowed. Prepare this assignment according to the guidelines found in the APA Style Guide, located in the Student Success Center. An abstract is not required. This assignment uses a rubric. Please review the rubric prior to beginning the assignment to become familiar with the expectations for successful completion. You are required to submit this assignment to Turnitin. Please refer to the directions in the Student Success Center.
bus352 week 7 Chapter 10 (Part 1) Problem Set assignment Details: Complete Problems 10.10, 10.17, 10.26, and 10.46 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade.
bus352 week 8 Chapter 11 Problem Set assignment Details: Complete Problems 10.55 and 10.59 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade.
bus352 week 8 Chapter 11 Problem Set assignment Details: Complete Problems 11.21, 11.22, and 11.26 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade.
bus352 week 8 Chapter 12 Problem Set assignment Details:
Complete Problems 12.3, 12.7, 12.9, 12.19, and 12.21 in the textbook. Submit one Excel file. Put each problem result on a separate sheet in your file. You are not required to submit this assignment to Turnitin. You are required to show all of your work/formulas to receive credit for the assignments. Failure to show your work/formulas will negatively impact your grade