QNT 275 Week 2 DQ 1
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Describe a business situation, other than what has already been selected by fellow students or selected from the team assignment, where mean and standard deviation can be used in decision making. Describe how calculation of mean and standard deviation can help in making a decision.
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Develop a 875word response that addresses each of the following prompts:
§ Define statistics with citation and reference.
§ Contrast quantitative data and qualitative data. Use two Peer Reviewed references.
§ Evalu....

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What is the importance of statistics in business decision making? Describe a business situation where statistics was used in making a decision.
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Select four variables, other than what your fellow students have already selected, that could be measured by nominal, ordinal, interval, and ratio scale. Classify them by measurement scale and select descriptive statistics that can be used to summarize data. Use the following table when posting y....

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How do we define measurement? What are various levels of measurement? How do you select measurement levels when developing a survey or data collection tool? Explain with examples.
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Describe a business situation, other than what has already been selected by fellow students or selected from the team assignment, where mean and standard deviation can be used in decision making. Describe how calculation of mean and standard deviation can help in making a decision.
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What are the various methods one can use to identify the shape of data distribution collected for research study? Why it is important to know the shape of distribution? How it can be used in decision making? Provide examples other than those already posted in class.
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Select an article from a news magazine or research journal where data is displayed in a pie or bar chart. Describe the data displayed in the chart and what conclusion you could draw.
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An oil change shop advertised to change oil within 15 minutes. Based on the data collected on a typical day, what is the probability that oil change will take 15 minutes or less time? Based on the data, do you think the business claim is valid? Explain why or why not.
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What are some conditions under which business decisions are made using subjective probability concepts? Provide at least two examples of subjective probability.
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What are the characteristics of standard normal distribution? The HR department of an organization collects data on employees' age, salary, level of education, gender, and ethnicity. Which data do you think is more likely to follow normal distribution? Explain why.
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What is the difference between an independent and a dependent variable? Does a regression model imply causation? Explain why or why not.
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Does correlation equal causation? Does the strength of correlation depend on the direction? What is the meaning of a zero correlation? Explain your answers.
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What are the requirements that must be met for a regression analysis? What happens if these requirements are violated? Why is analysis of residuals important?
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How would you select appropriate statistical tests for analysis research data? What aspects of research questions or data types are relevant considerations in choosing your tests? Why?
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How do you know you have validated a research study based on data gathered from primary or secondary sources? Have you been involved with any product testmarketing project? Explain. How did the resulting statistics affect the product's marketing strategy? How can organizations skew the statistic....

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In what way has the learning from this course helped you to effectively test hypotheses, draw conclusions, and provide recommendations to management? Consider what you have achieved in your research study conducted for this course.
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QNT 275 Week 4 Quiz
Question 1: • Serial correlation is typically observed in:
Question 2: • Anot....

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QNT 275 Week 3 Quiz
Question 1: • You work in marketing for a company that produces work boots. Quality control has sent you a memo detailing the length of time before the boots wear out....

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QNT 275 Week 2 Quiz
1. In order to summarize qualitative data, a useful tool is a __________.
2. A stemandleaf diagram is constructed by separating each value of a data ....

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Week 3 Learning Team Collaboration Discussion: Probability
Resource: Case Study 5.2 in Chapter 5 of Essentials of Business Statistics
Calculate the requested probabilities for items 13.
Discuss your findings for the probabilities.
What was the smok....

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Resource: Case Study 12.1 in Chapter 12 of Essentials of Business Statistics.
Click the Sushi Restaurant Data Set link.
Calculate the linear regression in item 1 of the case study.
Discuss the following with your team:
· ....

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This Tutorial contains 2 Presentations
CLO Business Decision Making Project, Part 3
Prepare an 11 to 15slide Microsoft® PowerPoint® presentation for the senior management team based on the business problem or opportunity you described in Weeks 34.
I....

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This Tutorial contains 2 Papers
CLO Business Decision Making Project, Part 2
Use the same business problem/opportunity and research variable you wrote about in Week 3.
Remember: do not actually collect any data; think hypothetically.
Develop a 1,05....

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This Tutorial contains 2 Papers
CLO Business DecisionMaking Project Part 1
Identify a business problem or opportunity at a company where you work or with which you're familiar. This will be a business problem that you use for the individual ass....

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You are employed as a statistician for a company that makes household products, which are sold by parttime salespersons who work during their spare time. The company has four salespersons employed in a small town. Let us denote these salespersons by A, B, C, and D.
The sales recor....

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Review the following business scenario:
You are the manager in a small town in the lake district of a Midwestern state enjoys a robust tourist season during the summer months, but has only a small population of residents during the off season. The Littletown Café adjusts the levels of st....

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I2 (Week 2) Individual Assignment: Business Problem: Prepare a paper examining a business problem confronting your organization or an organization you know of that you feel could be addressed through the application of the business research process. Describe the problem. Then present the res....

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Individual Assignment: Descriptive Statistics:
Identify a research problem different from the previous research problems that uses two different sets of the same type of data. Example: Sales from two different months or years. GPA's of men and women. Number of two different shelf items sold (....

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Individual Assignment: ttest I4: Identify a research problem different from the previous research problems that uses two different sets of the same type of data. Any subject may be chosen. Some examples: Sales from two different months or years. GPA's of men and women. Number of two differe....

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Prepare an 11 to 15slide Microsoft® PowerPoint® presentation for the senior management team based on the business problem or opportunity you described 13 and 14
Include on the slides what you would want the audience to see (include appropriate visual aids/layout). In the....

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Individual Assignment Final: ztest: Identify a research problem different from the previous research problems that uses two different sets of the same type of data. Example: Sales from two different months or years. GPA's of men and women. Number of two different shelf items sold (Coke &....

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Individual Assignment Final: ztest: Identify a research problem different from the previous research problems that uses two different sets of the same type of data. Example: Sales from two different months or years. GPA's of men and women. Number of two different shelf items sold (Coke &....

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Prepare an 11 to 15slide Microsoft® PowerPoint® presentation for the senior management team based on the business problem or opportunity you described in Weeks 3 and 5.
Include on the slides what you would want the audience to see (include appropriate visual aids/layout). In the Speaker Not....

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1
To make tests of hypotheses about more than two population means, we use the:
t distribution
normal distribution
chisquare distribution
analysis of variance distribution
2
You randomly select two households and observe whether or not they own a....

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1. This distribution has only one parameter. The curve is skewed to the right for small df and
becomes symmetric for large df. The entire distribution curve lies to the right of the vertical
axis. The distribution assumes nonnegative values only
1. t distribution
2. Normal distrib....

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Find z for each of the following confidence levels. Round to two decimal places.
90%
95%
96%
97%
98%
99%
For a data set obtained from a random sample, n = 81 and x = 48.25. It is known
that σ = 4.8.
What is the point estimate of μ? Round to two decim....

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Let x be a continuous random variable. What is the probability that x assumes a single value, such as a (use numerical value)?
The following are the three main characteristics of a normal distribution.
The total area under a normal curve equals _____.
A normal cu....

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List the simple events for each of the following statistical experiments in a sample space.
One roll of a die.
Note: Separate your response with a comma (,). For example 22, 23, 24
Three tosses of a coin.
Note: Use this notation for your answer. heads = H. tails = T. Fo....

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The following table lists the number of deaths by cause as reported by the Centers for Disease Control and Prevention on February 6, 2015:
Cause of Death Number of Deaths
Heart disease 611,105
Cancer 584,881
Accidents 130,557
Stroke ....

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Purpose of Assignment
This assignment provided students with practice in understanding the relationship of averages and standard deviation to make an informed business decision about the gross income performance of each movie genre. Students will learn to implement the use of these stat....

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QNT 275 Week 1 Apply Connect Week 1 Exercise
Review the glossary in your textbook in preparation for this assignment.
Complete the Week 1 Exercise in Connect.
Note: You have only 1 attempt available to complete assignments.
1.
Define Ratio Variable.
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