Florida institute of technology – mgt 5006 problems 2

                                   Florida Institute of Technology

 

Instructions:Read the questions very carefully because the requirements for each are specific. Each group should turn in one copy of this WORD document (email to me) with the names of the participating group members typed on the bottom of this cover page. Answer all questions fully in this document only. That is, I want to see the question below followed by your answer so I do not have to guess what you are answering. This project is worth 100 points.


CERTIFICATION OF AUTHORSHIP: I certify that the members of the group named above equally contributed to the assignment that is attached. Any assistance received in its preparation is fully acknowledged and disclosed in the paper. Any sources from which the group used data, ideas or words, either quoted directly or paraphrased is also disclosed.  Please print and sign below.

Student’s Signature: ______________________________________

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                 Florida Institute of technology  – MGT 5006

Instructions: Fully answer each part of each question that follows. Be sure to give your reasons and completely answer the questions.  This means that I am looking for several sentences of analysis in your answer. Be precise and comprehensive. This assignment is worth a large part of your grade. Cut and paste your answer (from Excel as appropriate) into this document below each question. Proof your final answers and your writing.  Submit this document with your answers in it.

 

 

 

1)      Tommy’s cab company transports riders using 2 routes. Use the following data to determine the mean driving time and the variance in the driving time.

Route 1

Route 2

54

61

69

62

58

63

47

53

72

58

56

65

66

59

 

67

a)      Run Excel descriptive statistics for the data above.

 

 

b)      Comment on any differences between the data.

 

 

 

2)      Use the data in #1 to:

a)      Create a hypothesis for the premise that there is no difference in the two samples.

 

 

b)     Use the F distribution and the Excel (F-test two sample for variance) function to test the hypothesis. Chapter 10

 

 

c)      Are the populations the same? Why/Why not?

 

3)      Use the following data and run a correlation in Excel. Chapter 3

Population

Expenditure

29

127

435

214

86

133

1090

208

219

153

503

184

47

130

3524

217

185

141

98

154

952

194

89

103

a)      Are the data normal? Run Descriptive statistics in Excel and support your answer.

 

 

b)     Show the results of the correlation in Excel and explain what the results MAY mean. 

 

 

c)      Is there absolutely a relationship between this data? Why, why not?

 

 

d)     Plot the data on a scatter chart? Does the chart suggest a relationship of the data?

 

 

e)      Might an outlier have an effect on this data?

 

 

f)       If there were an outlier, which data point might be the outlier? If you were to remove the outlier how would the correlation and the scatter chart be different?

 

 

 

4)      Run a linear regression (in Excel) with the data in the table shown in #3 above.  The independent variable is population and the dependent variable is expenditure. Chapter 12

a)      Display the regression chart. 

 

 

b)     Comment on the distance of each data point verses the regression line.

 

 

c)      Does the pattern of points take a cigar-like shape?

 

 

d)     Are the points far from the line?

 

e)      Is this regression analysis a good predictor of the effect of population on expenditures?  Why or why not?  Justify your answer.  

 

 

5)      Examine the residuals (get them from Excel) of the regression analysis that you did for #4. Chapter 12

a)      Explain how you would get the residuals if Excel did not provide them.

 

 

b)     Create a table showing each data point and the residual in Excel.

 

 

c)      Plot the residuals.  Show the plot.

 

 

d)     Comment on the plot. What should the residuals look like?

 

 

e)      What do they look like?

 

 

f)       What does this mean regarding the predicting power of the regression for this data?

 

 

6)      Note: This question is a general question not related to any particular data. What happens to the errors when the regression line is fit on curving data? (Remember the errors are supposed to be normally distributed, have constant variance and not have a pattern, i.e., be independent.)   

 

 

7)      Use the following data to answer the following questions. 

Skinfold

Thigh

Midarm

Body Fat

19.5

43.1

29.1

11.9

24.7

49.8

28.2

22.8

30.7

51.9

37

18.7

29.8

54.3

31.1

20.1

19.1

42.2

30.9

12.9

25.6

53.9

23.7

21.7

31.4

58.5

27.6

27.1

27.9

52.1

30.6

25.4

22.1

49.9

23.2

21.3

25.5

53.5

24.8

19.3

31.1

56.6

30

25.4

30.4

56.7

28.3

27.2

18.7

46.5

23

11.7

19.7

44.2

28.6

17.8

14.6

42.7

21.3

12.8

29.5

54.4

30.1

23.9

27.7

55.3

25.7

22.6

30.2

58.6

24.6

25.4

22.7

48.2

27.1

14.8

25.2

51

27.5

21.1

a)      Create and display a scatter chart (in Excel) for Body fat (Y axis) and skinfold (x-axis)

 

 

b)     Create and display a scatter chart (in Excel) for Body fat (Y axis) and thigh (x-axis)

 

 

c)      Create and display a scatter chart (in Excel) for Body fat (Y axis) and midarm (x-axis)

 

 

d)     What does each of these charts suggest?

 

 

e)      Run a correlation for each combination of the data (each independent variable with the dependent variable).

 

 

f)       What do the correlations for each combination suggest? 

 

 

8)      Run and show linear regressions (in Excel) for (chapter 12)

a)      Body fat as the dependent variable and skinfold as an independent variable. 

 

 

b)      b) Body fat as the dependent variable and midarm as an independent variable. 

 

 

c)      c) Body fat as the dependent variable and thigh as an independent variable. 

 

 

d)     Which seems to be a better predictor of the dependent variable body fat. Comment on why you feel this is true. 

 

 

e)      Could this be useful in determining body fat?

 

 

 

 

9)      Run a multiple regression (in Excel) with body fat as the dependent variable and skinfold, midarm and thigh as independent variables.  Show the results. Comment on the predictive value of the results. (Chapter 13)

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
At Custom Writing, we believe in exemplary services that are fully geared toward customer satisfaction. That is why we don’t shy away from giving you the following guarantees;

Money-back guarantee

Trusting us with your work is the best decision you have made, our pleasure lies in seeing you satisfied at 100%. If in the rear chance it happens that you are not satisfied, then know that we will equally not be satisfied. But worry not, our 30 days- Money back guarantee is all you need and that is what we promise you..

Read more

Zero-plagiarism guarantee

We utilize profoundly equipped and gifted writers who produce unique papers liberated from any form of plagiarism. To guarantee this, we run all papers finished by our scholars through a Plagiarism checker to ensure uniqueness and originality. In any case, on the off chance that you have vulnerabilities about the originality or falsification of any paper we have finished and conveyed to you, please get in touch with us straight away. We will quickly investigate, and if the paper is seen as counterfeited, we will take suitable actions including but not limited to, revising the paper for free and in extreme cases we will activate the money back guarantee.

Read more

Free-revision policy

We have an obligation deliver great and specially composed assignments. Our revision strategy endeavors to ensure total client satisfaction, comfort, and a genuine feelings of serenity. We make minor updates and corrections to the underlying request as part of our continuous assistance. However, revisions should just incorporate changes and alterations that were not effectively met, in the underlying request and that are inside the rules as per the current request structure..

Read more

Privacy policy

Our client's Data is an Integral part of our business but clearly, we are not in the business of offering our clients' very own data to others. We realize that you care how your online data is utilized and shared, we equally value your trust that we will do so cautiously and sensibly. We Promise to ensure the security of your own data during transmission by utilizing encryption conventions and programming. Likewise assist us with securing your information by not sharing your passwords and usernames.

Read more

Fair-cooperation guarantee

In submitting a request with us, you consent to the services we give. We will strive to take the necessary steps to convey a far reaching paper according to your prerequisites. Equally we depend on your cooperation to guarantee that we convey on this order.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency