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# QNT 275 Seek Your Dream/uophelp.com - PowerPoint PPT Presentation

For more course tutorials visit\nwww.uophelp.com\nQNT 275 Final Exam Guide\nQNT 275 Week 2 Quiz\nQNT 275 Week 3 Quiz\nQNT 275 Week 4 Quiz\n QNT 275 Week 1 Individual Assignment Statistics in Business (2 Papers)\n

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### QNT 275 Seek Your Dream/Uophelp.com

For more course tutorials visit

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### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Entire Course

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QNT 275 Final Exam Guide

QNT 275 Week 2 Quiz

QNT 275 Week 3 Quiz

QNT 275 Week 4 Quiz

QNT 275 Week 1 Individual Assignment Statistics in Business (2 Papers)

### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Final Exam Guide

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QNT 275 Final Exam Guide

The salaries of teachers in a particular school district are normally distributed with a mean of \$50,000 and a standard deviation of \$2,500. Due to budget limitations, it has been decided that the teachers who are in the top 2.5% of the salaries would not get a raise. What is the salary level that divides the teachers into one group that gets a raise and one that doesn’t?

### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Week 1 DQ 1

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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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QNT 275 Week 1 DQ 2

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elect 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 your response:

Variable

Level of Measurement

Descriptive Stat and Justify Selection

Nominal

Ordinal

Interval

Ratio

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QNT 275 Week 1 DQ 3

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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.

### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Week 1 Individual Assignment Statistics in Business (2 Papers)

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Develop a 875-word 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.

Evaluate tables and charts used to represent quantitative and qualitative data.

Describe the levels of data measurement.

Describe the role of statistics in business decision-making.

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QNT 275 Week 2 Assignment MiniProject 3 2

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You are employed as a statistician for a company that makes household products, which are sold by part-time 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.

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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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QNT 275 Week 2 DQ 2

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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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QNT 275 Week 2 DQ 3

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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.

### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Week 2 Individual Assignment Activity Data Set (Little Town Cafe)

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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 staff according to the time of year, to coincide with the number of guests, with the tourist season typically starting around Memorial Day each year.

### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Week 2 Quiz

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QNT 275 Week 2 Quiz

1.         In order to summarize qualitative data, a useful tool is a __________.

2.         A stem-and-leaf diagram is constructed by separating each value of a data set into two parts. What are these parts?

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QNT 275 Week 3 CLO Business DecisionMaking Project Part 1

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CLO Business Decision-Making 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 assignments in Weeks 3-5. It should be a problem/opportunity for which gathering and analyzing some type of data would help you understand the problem/opportunity better.

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QNT 275 Week 3 DQ 1

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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.

Class Interval

Frequency

6 to 10 minutes

3

11 to 15 minutes

8

16 to 20 minutes

6

21 to 25 minutes

2

More than 25 Minutes

1

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QNT 275 Week 3 DQ 2

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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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QNT 275 Week 3 DQ 3

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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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QNT 275 Week 3 Probability Case Study 5.2

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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 1-3.

Discuss your findings for the probabilities.

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QNT 275 Week 3 Quiz

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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 under heavy use. They find that the boots wear out in an average of 208 days, but the exact amount of time varies, following a normal distribution with a standard deviation of 14 days. For an upcoming ad campaign, you need to know the percent of the pairs that last longer than six months-that is, 180 days. Use the empirical rule to approximate this percent.

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QNT 275 Week 4 DQ 1

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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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QNT 275 Week 4 DQ 2

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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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QNT 275 Week 4 DQ 3

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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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QNT 275 Week 4 Linear Regression Case 12 1

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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:

Explain if simple regression or multiple regression is more appropriate for making predictions in this case.

Predict what will happen to sales based on unemployment rate and the level of advertising

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QNT 275 Week 4 Quiz

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QNT 275 Week 4 Quiz

Question 1:      •           Serial correlation is typically observed in:

Question 2:      •           Another name for an explanatory variable is the ___.

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QNT 275 Week 4CLO Business DecisionMaking Project Part 2

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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.

### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Week 5 DQ 1

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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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QNT 275 Week 5 DQ 2

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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 test-marketing project? Explain. How did the resulting statistics affect the product's marketing strategy? How can organizations skew the statistical outcomes of their business research?

### QNT 275 Seek Your Dream/Uophelp.com

QNT 275 Week 5CLO Business DecisionMaking Project Part 3

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CLO Business Decision Making Project, Part 3

Prepare an 11- to 15-slide Microsoft® PowerPoint® presentation for the senior management team based on the business problem or opportunity you described in Weeks 3-4.

### QNT 275 Seek Your Dream/Uophelp.com

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