# QNT 275 All Participations

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QNT/275

STATISTICS FOR DECISION MAKING

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QNT 275 Week 1 Practice: Week 1 Discussion Question 1

Consider a decision you need to make at work or at home.

Post your response in the discussion area.

Note: This must be original; do not use examples from the Internet.

QNT 275 Week 1 Practice: Week 1 Discussion Question 2

What is statistics?

What is statistics?

How are statistics used in your organization for making decisions?

What decisions have you made based on statistics?

QNT 275 Week 2 Practice: Week 2 Discussion Question 1

Research the Internet for an example of a pie chart or bar chart.

Post a copy along with its source in the discussion area.

Include a question regarding the chart for your classmates to respond to.

Respond to a classmate’s question.

QNT 275 Week 2 Practice: Week 2 Discussion Question 2

Respond to the discussion question posted by your instructor.

Post your response in the discussion area.

This week, you were to watch the videos listed below.  Please comment on at least one of the videos, and tell us what you learned.  What questions do you have remaining about the topic?

Creating Frequency distributions for qualitative data

Summarizing data using bar graphs and pie charts

Creating a frequency distribution using the FREQUENCY function

Creating a histogram

Calculating mean, median, and mode

Calculating percentiles and quartiles

Calculating variance and standard deviation

Summarizing data using descriptive statistics

QNT 275 Week 3 Practice: Week 3 Discussion Question 1

Reference the Week 2 Case.

Respond to one of the following:

Regarding requirement #4: What impact would an outlier have?

Regarding requirement #5: Why is it important to look at dispersion?  Why is standard deviation a better measure of dispersion than the range?

Post your response in the discussion area.

QNT 275 Week 3 Practice: Week 3 Discussion Question 2

Sample Space

In your own words, how would you describe a sample space?  What are some examples?  Please use examples that are different from those in the textbook.

Write a sample space/probability question for your classmates to answer.  Example:  A game spinner has four equal sections, and they are colored red, blue, black, and white.  What is the sample space?  What is the probability of landing on red after spinning one time?

Respond to the questions your classmates have written.

QNT 275 Week 4 Practice: Week 4 Discussion Question 1

Reference the Week 3 Case study.

Respond to one of the following:

Regarding requirement #2: What does the mean and standard deviation mean in terms of expected sales?

Regarding requirement #2: How can this information be used to benefit the business?

Regarding requirement #3: Can you conclude whether the data is normally distributed?

Regarding requirement #4: What can be interpreted by that percentage?

Post your response in the discussion area.

QNT 275 Week 4 Practice: Week 4 Discussion Question 2

Respond to this week’s discussion question posted by your instructor.

Post your response in the discussion area.

Hello Everyone,

What hints for the week 4 case would you like to share with your classmates?  What did you have difficulty with, if anything, and how did you overcome the challenges?  Feel free to post helpful references to the text, formulas, steps to take, or general advice.  Please do not share answers, though.

QNT 275 Week 5 Practice: Week 5 Discussion Question 1

Reference the Week 4 Case study.

Respond to one of the following:

Regarding requirement #2: What impacted the Reps’ average weekly performance to be greater than the population mean?

Regarding requirement #3: Considering your hypothesis statements, provide an example of a Type I and a Type II error.

Regarding requirement #3: Considering the p-values, is a statistically significant difference between the two reps being considered for the manager’s position? Explain.

Regarding requirement #3: Who would you recommend to be promoted to Sales Manager – Rep A or Rep B?  Why?

Regarding requirement #4: Considering the outcome of the hypothesis test, is your new Sales Manager outperforming the sales force?

Post your response in the discussion area.

QNT 275 Week 5 Practice: Week 5 Discussion Question 2

Respond to this week’s discussion question posted by your instructor.

Post your response in the discussion area.

What Waits Beyond?

Hello Everyone,

It is great to see you cross the finish line within the next few days!  Congratulations to all for your motivation and hard work over the past five weeks.  Now that you’ve had opportunity to work with Excel, what do you think about letting the software take care of the computations?  Good luck to all of you as you wrap up the course.