MAT220 Unit
1 Discussion Latest 2018 June
Graphical displays are used to provide the viewer
information that illustrates qualitative or quantitative information about the
data set under review. After reading the assigned sections in Chapter 2, please
provide an example of where you think a graphical display could be used
incorrectly. What ramification(s) do you think could result from the graphical
display in your example being used incorrectly?
MAT220 Unit
4 Discussion Latest 2018 June
After reading the example
of where probability values can be used in managerial decision-making to
establish a product guarantee, post a comment where you think probability could
be used to help solve management questions/problems. Think of something at
work, past or present, where you could apply the techniques in the example to
assist in making the best decision. If you can’t draw on a life experience,
then think of a product/issue where this process could be applied. Please
explain your answer. Remember to cite your resources and use your own words in
your explanation.
MAT220 Unit
5 Discussion Latest 2018 June
Why are sampling
distributions important to the study of inferential statistics? In your
answer, demonstrate your understanding by providing an example of a sampling
distribution from an area such as business, sports, medicine, social science,
or another area with which you are familiar. Remember to cite your resources
and use your own words in your explanation.
MAT220 Unit
7 Discussion Latest 2018 June
Hypothesis testing has
come under scrutiny and a sense of skepticism over the past few years by
experts in all fields where hypothesis testing is utilized. Based on what you
have covered in the course through Unit 7, discuss the pros and cons of
hypothesis testing from your viewpoint. Why do you think hypothesis testing can
lead to skepticism in general? Remember to cite your resources and use your own
words in your explanation.
MAT220 Unit
8 Discussion Latest 2018 June
Question 8 A
Pick any two variables that you feel may be
related and estimate what you think the strength of the correlation coefficient
would be for those two variables. In your response, estimate the value of
r. For example, specify a strong (.7 to .9), medium (.4 to .6), or low (0
to .3) value for r. The value of the coefficient can be positive or
negative. For example, consider an increase in police patrols in a
neighborhood and the number of burglaries that occur in that
neighborhood. I would say that would be a strong inverse relationship with
an r value of -0.8; as one (patrols) increases, the other (burglary rate) goes
down. Describe the factors that you think would contribute to why the
variables would have the relationship that you estimate it to be.
Question 8 B
Now that you have completed this course in
Statistics, please describe a concept covered in the course that you feel might
be of assistance to you now or in the future. For example, using charts
and graphs to graphically describe data at your job, or using one of the sampling
methods discussed at the beginning of the course to generate sample data.
Please be specific in explaining how you would use what you have learned in
class to your benefit.
