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QNT 561 genius Education Begins/qnt561genius.com

FOR MORE CLASSES VISIT<br>www.qnt561genius.com<br>1. The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.2 miles per gallon.<br>2. What conditions must n satisfy to make the x2 test valid?<br>3. To use the t-statistic to test for a difference between the means of two populations, what assumptions must be made about the two populations? About the two samples?<br>4. Studies of managers from two countries in the 1970s found sharp differences of opinion toward quality management. To find out if these differences continue to exist, researchers surveyed 100 managers in each country in the electronics manufacturing industry. The accompanying table gives the percentages of managers from each country who agree with each of 10 randomly selected statements regarding quality. Complete parts a through c.<br>

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QNT 561 genius Education Begins/qnt561genius.com

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  1. QNT 561 genius Education Begins/qnt561genius.com FOR MORE CLASSES VISIT www.qnt561genius.com

  2. QNT 561 Final Exam Guide (New) • 1.      The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is approximately normally distributed with a standard deviation of 3.2 miles per gallon. • 2.      What conditions must n satisfy to make the x2 test valid? • 3.      To use the t-statistic to test for a difference between the means of two populations, what assumptions must be made about the two populations? About the two samples?

  3. QNT 561 Final Exam Guide (New, 2017) • 1. James Desreumaux, VP of Human Resources of American First Banks (AFB), is reviewing the employee training programs of AFB banks. His staff randomly selected personnel files for 100 tellers in the Southeast Region and determined that their mean training time was 25 hours. Assume that the population standard deviation is 5 hours. The 95% confidence interval for the population mean of training times is 2. If x is a binomial random variable with n=10 and p=0.8, the mean value of x is______ 3. According to the central limit theorem, for samples of size 64 drawn from a population with µ =800 and σ = 56, the standard deviation of the sampling distribution of sample means would equal ______ 4. Life tests performed on a sample of 13 batteries

  4. QNT 561 Final Guide (Latest) • 1. A random sample of size 15 is selected from a normal population. The population standard deviation is unknown. Assume the null hypothesis indicates a two-tailed test and the researcher decided to use the 0.10 significance level. For what values of t will the null hypothesis not be rejected? • 2. Which of the following is a characteristic of the F distribution? • 3. For a chi-square test involving a contingency table, suppose the null hypothesis is rejected. We conclude that the two variables are __________.

  5. QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Consumer Food) • Purpose of Assignment The purpose of this assignment to orient students to the key concepts in statistics. This assignment will introduce students to the language of statistics. Students will also get a chance to warm-up on evaluating some basic descriptive statistics using Excel® prior to the course start. Assignment Steps This assignment has an Excel dataset spreadsheet attached. Resource: Microsoft Excel, Statistics Concepts and Descriptive Measures

  6. QNT 561 Week 1 Assignment Statistics Concepts and Descriptive Measures Instructions (Financial Data) • Purpose of Assignment The purpose of this assignment to orient students to the key concepts in statistics. This assignment will introduce students to the language of statistics. Students will also get a chance to warm-up on evaluating some basic descriptive statistics using Excel® prior to the course start. Assignment Steps This assignment has an

  7. QNT 561 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. 

  8. QNT 561 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.

  9. QNT 561 Week 1 Individual My Statslab Problem Set • 1.      What is statistics? • 2.      Explain the difference between descriptive and inferential statistics. • 3.      Explain the difference between qualitative and quantitative data. • 4.      Explain how populations and variables differ. • 5.      Explain how populations and samples differ. • 6.      What is a representative sample? • 7.      Explain the difference between a population and a process. • 8.      Define statistical thinking. • 9.      Suppose you’re given a data set that classifies each sample

  10. QNT 561 Week 1 Lab Work (New) • Chapter 2: • Ex 4) Two Thousand three hundred frequent business travelers are asked which Midwestern city they prefer: Indianapolis, Saint Louis, Chicago or Milwaukee. 388 liked Indianapolis best, 450 liked Saint Louis, 1212 liked Chicago and the remainder prefers Milwaukee. Develop a frequency table and a relative frequency table to summarize this information (Round relative frequency to 3 decimal places.) • Ex 6) A small business consultant is investigating the performance of several companies.

  11. QNT 561 Week 2 Case Study MBA Schools in Asia Pacific • Review the Case Study: MBA Schools in Asia-Pacific and the Case Study: MBA Schools in Asia-Pacific data set. Prepare a 1,050-word managerial report for your boss. Use the following questions for guidelines and directions on what to include in the report: 1. What is the type of data (Quantitative or Qualitative) for each of the columns (variables) in the dataset? If quantitative, is the data discrete or continuous? Neatly summarize your response in a table for all the columns (variables). 2. Using Excel, find the mean, median, standard deviation, minimum, maximum, and the three quartiles for each of the quantitative variables identified in part 1 above. Neatly summarize in a table on

  12. QNT 561 Week 2 DQ 1 • 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!

  13. QNT 561 Week 2 DQ 2 • 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!

  14. QNT 561 Week 2 Individual My Statslab Problem Set • 1.      A random sample of 87 observations produced a mean   = 25.7 and a standard deviation s = 2.6. • 2.      Health care workers who use latex gloves with glove powder on a daily basis are particularly susceptible to developing a latex allergy. Each in a sample of 50 hospital employees who were diagnosed with a latex allergy based on a skin-prick test reported on their exposure to latex gloves. Summary statistics for thr number of latex gloves used per week are  = 19.4 and s = 11.6. Complete parts (a) – (d). • 3.      Each child in a sample of 62 low-income children was administered a language and communication exam. The sentence complexity scores had a mean of 7.63 and a standard deviation of 8.92. Complete parts a through d.

  15. QNT 561 Week 2 Lab Work (New) • Chapter 5: Ex 4) A large company must hire a new president. The Board of Directors prepares a list of five candidates, all of whom are equally qualified. Two of these candidates are members of a minority group. To avoid bias in the selection of the candidate, the company decides to select the president by lottery. a. What is the probability one of the minority candidate is hired? b. Which concept of probability did you use to make this estimate? Ex 14) The chair of the board of directors says, “ There is a 50% chance this company will earn a profit, a 30% chance it will break even, and a 20% chance it will lose money next quarter”: a. Use an addition rule to find the probability the company will not lose money next quarter b. Use the complement rule to find the probability it will not lose money next quarter. EX 22 ) A National Park Service survey of visitors to the Rocky

  16. QNT 561 Week 2 Team Assignment Business Research Project Part 1 Business Problem and Research Questions • Identify an organization or business for your Learning Team research project.  • Describe the products or services it provides.  • Identify a problem or dilemma faced by the organization that could be addressed by research.  • Discuss the problem as a team.  • Discuss your selected problem or dilemma with your faculty member to ensure that it is at an appropriate scope for the course. 

  17. QNT 561 Week 2 Team Assignment Business Research Project Part 1 Formulation of the Research Problem • Identify an organization from any member in your Learning Team or an organization with which your team is familiar.  If an actual company is used, disguise its name with a pseudonym.  • Identify one independent variable and one dependent variable based on the business.  Operationalize these variables if they are too abstract to measure.Develop a real or realistic research question for the company you chose and the two variables. Include a background, a business problem and the team's role of no more than

  18. QNT 561 Week 3 Assignment Expansion Strategy and Establishing a Re-Order Point • Learning team paper Purpose of Assignment This assignment has two cases. The first case is on expansion strategy. Managers constantly have to make decisions under uncertainty. This assignment gives students an opportunity to use the mean and standard deviation of probability distributions to make a decision on expansion strategy. The second case is on determining at which point a manager should re-order a printer so he or she doesn't run out-of-stock. The second case uses normal distribution. The first case demonstrates application of statistics in finance and the second case demonstrates application of statistics in operations management. Assignment Steps

  19. QNT 561 Week 3 Case Study SuperFun Toys • Individual Paper: Purpose of Assignment The purpose of this assignment is for students to learn how to make managerial decisions using a case study on Normal Distribution. This case uses concepts from Weeks 1 and 2. It provides students an opportunity to perform sensitivity analysis and make a decision while providing their own rationale. This assignment also shows students that statistics is rarely used by itself. It shows tight integration of statistics with product management. Assignment Steps Develop a 1,050-word case study analysis including the following: • Use the sales forecaster’s prediction to describe a normal probability distribution that can be used

  20. QNT 561 Week 3 DQ 1 • 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? 

  21. QNT 561 Week 3 DQ 2 • 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. 

  22. QNT 561 Week 3 Individual Mystatslab Problem Set • 1.      Which hypothesis, the null or the alternative, is the status-quo hypothesis? • 2.      A university economist conducted a study of elementary school lunch menus. During the state-mandated testing period, school lunches averaged 890 calories. The economist claimed that after the testing period ended, the average caloric content of the school lunches increased/dropped significantly. Set up the null and alternative hypothesis to test the economist’s claim. • 3.      Suppose the mean GPA of all students graduating from a particular university in 1975 was 2.40. The register plans to look at records of graduating last year to see if the mean

  23. QNT 561 Week 3 Lab Work (New) • Chapter 8: • Ex 2) The following is a list of 29 hospitals in the Cincinnati (Ohio) and Northern Kentucky region. The hospitals are identified by numbering them 00 through 28. Also included is whether the hospital is a general medical/surgical hospital (M/S) or a specialty hospital (S). we are interested in estimating the average number of full- and part-time nurses employed in the area hospitals. • Ex 8) A population consists of the following five values : 1,1,6,7,9. • a.       List all samples of size 3, and compute the mean of each sample • b.       Compute the mean of the distribution of sample means and the population mean.

  24. QNT 561 Week 3 Team Assignment Business Research Project Part 2 Research Plan (2 Papers) • This Tutorial contains 2 different Papers • Develop a plan for your Business Research Project in approx. 800 words. • Revise the research questions based on instructor feedback from the previous week.  • Identify population and samples for your research.  • Describe who will be chosen and how they will be accessed. 

  25. QNT 561 Week 4 Case the Payment Time • Individual Paper Purpose of Assignment The purpose of the assignment is to develop students' abilities in using datasets to apply the concepts of sampling distributions and confidence intervals to make management decisions. Assignment Steps Resources: Microsoft Excel®, The Payment Time Case Study, The Payment Time Case Data Set Review the Payment Time Case Study and Data Set. Develop a 700-word report including the following calculations and using the information to determine whether the new billing system has reduced the mean bill payment time: • Assuming the standard deviation of the payment times for all payments is 4.2 days, construct a 95% confidence interval estimate to determine whether the new billing system was effective. State the interpretation of 95% confidence

  26. QNT 561 Week 4 Discussion Descriptive Statistics • Create a Microsoft® Excel® spreadsheet with the two variables from a dataset for your choosing. • Analyze the data with MegaStat®, StatCrunch®, Microsoft®Excel®or other statistical tool(s), including: • (a) Descriptive stats for each numeric variable • and • (b) Histogram for each numeric variable • and either (c) or (d) • (c) Bar chart for each attribute (non numeric) variable • (d) Scatter plot if the data contains two numeric variables • Determine the appropriate descriptive statistics.(a) For normally distributed data use the mean and standard

  27. QNT 561 Week 4 DQ 1 • does technological advancement affect the ability to collect data? Provide examples. Does this advancement increase the chance for errors? Explain. 

  28. QNT 561 Week 4 DQ 2 • What is the importance of pretesting questions and instruments? What are risks of not doing this? Provide an example.

  29. QNT 561 Week 4 Individual Mystatslab Problem Set • 1.      Researchers conducted a survey of a representative sample of over 1,000 drivers. Based on how often each driver engaged in road behaviour, a road rage score was given. The drivers were also grouped by annual income. The data were subjected to an analysis of variance, with the results summarized in the table. • 2.      Researchers surveyed a random sample of 25 employees who were enrolled in a certain program at one of three universities. These individuals were divided into four distinct groups, 1, 2, 3, and 4, depending on their job situation at a previous or current firm. The sampled employees completed a questionnaire on their ethical perceptions of downsizing. One item asked e

  30. QNT 561 Week 4 Lab Work (New) • Chapter 10: Ex 2) A Sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.01 significance level. EX. 10) Given the following hypotheses: H0 : µ = 400 H1: µ ≠ 400 A random sample of 12 observations is selected from a normal population. The sample mean was 407 and the sample S.D 6. Using the 0.1 significance

  31. QNT 561 Week 4 Team Assignment Business Research Project Part 3 Survey and Data Collection Plan (2 Sets) • This Tutorial contains 2 different sets • Create a draft of the survey.  • Conduct a pilot pretest having another Learning Team in the class to provide feedback for your team. Chet will create a message thread for each team to place their survey in the Class Discussion Tab.  • Revise the survey based on the feedback provided by your classmates.

  32. QNT 561 Week 5 DQ 1 • What is the value of performing hypotheses tests to solve problems related to business and operations management? Provide specific examples.

  33. QNT 561 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? 

  34. QNT 561 Week 5 Individual Mystatslab Problem Set • 1.      Consider the pairs of measurements shown to the right. • 2.      Researchers investigated the effect of tablet surface area to volume on the rate at which a drug is released in a controlled-release dosage. For six similarly shaped tablets with different weights and thicknesses, the diffusional drug release rate (percentage of drug released divided by the square root of time) was determined. The experimental data are listed in the table. Complete parts a through d. • 3.      Many entrepreneurs have donated money to various causes. Data on the total amount pledged and remaining net worth for the 10 top donors are given in the tab

  35. QNT 561 Week 5 Lab Work (New) • Chapter 13: Ex 6) The owner of Maumee Ford-Mercury-Volvo wants to study the relationship between the age of a car and its selling price. Listed below is a random sample of 12 used cars sold at the dealership during the last year. a. If we wants to estimate selling price on the basis of the age of car, which variable is thr dependent varialble and which is the independent variable? b. 1. Determine the correlation coefficient 2. Determine the coefficient of determination. c. Interpret the correlation coefficient. Does it surprise you that the correlation coefficient is negative? EX.12) The student Government Association at Middle Carolina University wanted to demonstrate the relationship between the number of beers a student drinks and his or her blood alcohol content (BAC). A random sample of 18 students participated

  36. QNT 561 Week 5 Spicy Wings Case Study • Week 5 Individual Paper • Spicy Wings Case Purpose of Assignment The purpose of this assignment is to develop students' abilities to combine the knowledge of descriptive statistics covered in Weeks 1 and 2 and one-sample hypothesis testing to make managerial decisions. In this assignment, students will develop the ability to use statistical analysis and verify whether or not a claim is valid before advertising it. Assignment Steps Resources: Microsoft

  37. QNT 561 Week 5 Team Assignment Business Research Project Part 4 Data Analysis (2 Sets) • This Tutorial contains 2 different sets • Administer the survey. • In a paper in the APA format describe the following:Determine the sample process including sample contact, survey distribution, and survey collection.Organize, prepare, and describe the data.

  38. QNT 561 Week 5 Team One-Sample Hypothesis Testing (Election Results, SpeedX • Week 5 Learning team Paper Part A : One-Sample Hypothesis Testing Cases Purpose of Assignment The purpose of this assignment is to develop students' abilities to combine the knowledge of descriptive statistics covered in Weeks 1 and 2 and one-sample hypothesis testing to make managerial decisions. In this assignment, students will learn how statistical analysis is used in predicting an election winner in the first case. In the second case, students will conduct a hypothesis test to decide whether or not a shipping plan will be profitable. Assignment Steps Resources: Microsoft Excel®, Case Study Scenarios, SpeedX Payment Times Develop a 700- to 1,050-word statistical analysis based on the Case Study Scenarios and SpeedX Payment Times. Include answers to the following: Case 1: Election

  39. QNT 561 Week 6 Lab Work (New) • Chapter 18: EX.2) Listed Below is the number of movie tickets sold at the Library Cinema-Complex, in thousands, for the period from 2001 to 2013. Compute a five-year weighted moving average using weights of 0.15, 0.15, 0.25, 0.16, and 0.29, respectively. Describe the trend in yield. EX 10) Appliance Center sells a variety of electronic equipment and home appliance. For the last 4 years, 2010 through 2013, the following quarterly sales (in $ millions) were reported. Determine the typical seasonal index for each of four quarters.

  40. QNT 561 Week 6 Signature Assignment (1400 words) • Individual Paper Signature Assignment About Your Signature Assignment This signature assignment is designed to align with specific program student learning outcome(s) in your program. Program Student Learning Outcomes are broad statements that describe what students should know and be able to do upon completion of their degree. The signature assignments might be graded with an automated rubric that allows the University to collect data that can be aggregated across a location or college/school and used for program improvements

  41. QNT 561 Week 6 Team Assignment Business Research Project Part 5 Research Report and Presentation (2 Sets) • This Tutorial contains 2 Sets of Report and Presentation • Complete the cumulative Business Research Report in approx. 1,500 words by collaborating with your team to include the following: • Revised tables or figures based on prior instructor feedback • The description or interpretation for the tables or figures • Summary of Learning Team results • Answers to the research questions

  42. QNT 561 genius Education Begins/qnt561genius.com FOR MORE CLASSES VISIT www.qnt561genius.com

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