MATH399 2019 January All Week Discussions Latest

MATH399 Applied Managerial Statistics

Week 1 Discussion

Descriptive Statistics

If you were given a large data set (i.e., sales over the last year of our top 100 customers), what might you be able to do with these data? What might be the benefits of describing the data?

 

MATH399 Applied Managerial Statistics

Week 2 Discussion

Regression

Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information that you have. Your boss has asked you to put together a report showing the relationship between these two variables. What could you present and why?

 

MATH399 Applied Managerial Statistics

Week 3 Discussion

Statistics in the News

Keep your eyes and ears open as you read or listen to the news this week. Find/discover an example of statistics in the news to discuss the following statement that represents one of the objectives of statistics analysis: "Statistics helps us make decisions based on data analysis." Briefly discuss how the news item or article meets this objective. Cite your references. Also, keep in mind and discuss how the impact of your study on your patients or staff might differ if you found it in a journal.

 

MATH399 Applied Managerial Statistics

Week 4 Discussion

Discrete Probability Variables

Provide an example that follows either the binomial or Poisson distribution, and explain why that example follows that particular distribution. In your responses to other students, make up numbers for the example provided by that other student, and ask a related probability question. Then, show the work (or describe the technology steps), and solve that probability example.

 

 

 

MATH399 Applied Managerial Statistics

Week 5 Discussion

Interpreting Normal Distributions

Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?

 

MATH399 Applied Managerial Statistics

Week 6 Discussion

Confidence Interval Concepts

Consider the formula used for any confidence interval and the elements included in that formula. What happens to the confidence interval if you

increase the confidence level,

increase the sample size, or

increase the margin of error? Only consider one of these changes at a time. Explain your answer with words and by referencing the formula.

 

MATH399 Applied Managerial Statistics

Week 7 Discussion

Rejection Region

How is the rejection region defined, and how is that related to the p value? When do you reject or fail to reject the null hypothesis? Why do you think statisticians are asked to complete hypothesis testing? Can you think of examples in courts, in medicine, or in your area?

 

MATH399 Applied Managerial Statistics

Week 8 Discussion

Math in the Real World

We rely heavily on statistics and statistical research in the health and helping professions. The outcomes from this work help us identify the best methods for helping and caring for clients and patients. Discuss at least two concepts from the course that you can use in your future career. Be sure to state the concept, how you would use it, and why that approach would be the best approach for the situation.