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2.  QNT 561 Week 1 Individual Practice Problems (Chapter 2 and 4)  QNT 561 Week 1 DQ 1  QNT 561 Week 1 DQ 2  QNT 561 Week 2 Individual Practice Problems (Chapter 4 and 5)  QNT 561 Week 2 Team Assignment Business Research Methods, Part I  QNT 561 is a online tutorial store we provides QNT 561 Entire Course And Final Guide You can find here QNT 561 Entire Course QNT 561 Entire Course And Final Guide

3.  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 x 2 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?  A difference between calculating the sample mean and the population mean is  2. Which of the following measures of central location is affected most by extreme values?  3. Which level of measurement is required for the median?  4. In which of the following distributions is the probability of a success usually small? QNT 561 Final Exam Guide (New) QNT 561 Final Exam Guide 1

4.  1) Which of the following measures of central location is affected most by extreme values? A. Mean B. Median C. Mode D. Geometric mean 2) Which level of measurement is required for the median? A. Nominal B. Ordinal C. Interval D. Ratio  A difference between calculating the sample mean and the population mean is  2. Which of the following measures of central location is affected most by extreme values?  3. Which level of measurement is required for the median?  4. In which of the following distributions is the probability of a success usually small? QNT 561 Final Exam Guide 2 QNT 561 Final Exam Guide Set(1 and 2)

5.  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.  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. When would you use Chebyshev’s theorem and the empirical rule in business? How are they calculated? QNT 561 Week 1 DQ 1 QNT 561 Week 1 DQ 2

6.  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.  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. QNT 561 Week 1 Individual My Statslab Problem Set QNT 561 Week 2 DQ 1

7.  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!  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. QNT 561 Week 2 DQ 2 QNT 561 Week 2 Individual My Statslab Problem Set

8.  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.  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. QNT 561 Week 2 Team Assignment Business Research Project Part 1 Business Problem QNT 561 Week 2 Team Assignment Business Research Project Part 1 Formulation of the Research Problem

9.  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?  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. QNT 561 Week 3 DQ 1 QNT 561 Week 3 DQ 2

10.  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.  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. QNT 561 Week 3 Individual Mystatslab Problem Set QNT 561 Week 3 Team Assignment Business Research Project Part 2 Research Plan (2 Papers)

11.  (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  does technological advancement affect the ability to collect data? Provide examples. Does this advancement increase the chance for errors? Explain. QNT 561 Week 4 Discussion Descriptive Statistics QNT 561 Week 4 DQ 1

12.  What is the importance of pretesting questions and instruments? What are risks of not doing this? Provide an example.  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.  2. Researchers surveyed a random sample of 25 employees who were enrolled in a certain program at one of three universities. QNT 561 Week 4 DQ 2 QNT 561 Week 4 Individual Mystatslab Problem Set

13.  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.  What is the value of performing hypotheses tests to solve problems related to business and operations management? Provide specific examples. QNT 561 Week 4 Team Assignment Business Research Project Part 3 Survey QNT 561 Week 5 DQ 1

14.  What are differences between dependent and independent samples? Provide examples. What are implications for determining the tests used to analyze data?  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. QNT 561 Week 5 DQ 2 QNT 561 Week 5 Individual Mystatslab Problem Set

15.  This is to provide the CEO a quick touch point informing them how everything went, what are your initial thoughts, showing them your raw results (# counts and percentages) for each question, and anything that is jumping out at you at this point.  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  Research challenges QNT 561 Week 5 Team Assignment Business Research Project Part 4 Data Analysis (2 Sets) QNT 561 Week 6 Team Assignment Business Research Project Part 5 Research Report

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