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ECON1274 Business Statistics

Question

Answered

Questions:

1.

  1. (a)  You are interested in comparing two variables in your dataset. Which graphical chart would you choose to use? Explain the reason for the selection of this graphical chart. Construct the chart and describe what you can observe.

  2. (b)  Which graphical technique or chart should be used if the researcher is interested in describing the proportion of one categorical variable in your data? Explain the reason for the selection of this graphical chart. Construct the chart and describe what you can observe about the proportion.

2.

A researcher wishes to use a frequency histogram to display the data.

(a) Consider one column with a numerical variable in your dataset. How many observations do you have in this column? Decide on the suitable number of classes for your data set and calculate the class width (show how you have calculated the class width).

(b) Using Excel construct a histogram for this variable using appropriate BIN values from part (a) and comment on the shape of the distribution.

3.

The researcher wishes to use numerical descriptive measures to summarise the data.

  1. a)  Prepare a numerical summary report for one variable in your data set by including summary measures such as mean, median, range, variance, standard deviation, smallest and largest values and the three quartiles, for each variable.

  2. b)  Comment on the descriptive statistics.

4.

Select two quantitative variables in your dataset and find out if there is a linear relationship between these two variables.

a). Using Excel, construct a scatterplot to determine the direction of the relationship. Also, include the linear regression equation and the coefficient of determination.

b). Write the equation of the regression model and interpret its slope in the context of your study.

c). Using Excel, calculate the correlation coefficient and interpret the result.

5.

Write a short statistical report. In your statistical report include:

  • What question you had in mind
  • Description of your data set
  • Statistical results obtained in Excel. (descriptive statistics, tables or figures supporting your conclusions)
  • Conclusion

ECON1274 Business Statistics

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Research Design and Methodology

Lucy's 6007 M3 and M4 group- Final Proposal Posted on: Friday, 16 September 2016 14:49:14 o'clock AEST Dear Student, Please see the following guideline for your individual final research proposal. 1. Aim and Motivation of the project (you can start introduction from the 2nd paragraph under aim and m ...

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MCS 3500 Marketing Analytics

Part 1. Multinomial Logit Model (MNL) Estimates and Plot A. Generate MNL estimates. Comment on the parameters estimates. 15 B. Plot coefficients with confidence intervals. Comment on the coefficients that are NOT significantly different from each other.  Part 2. Willingness to Pay (WTP) C. Calc ...

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Task: To access the Message Box, click on the link, create an item, choose recipient(s), write a message in the open window, and/or attach a file (upload attachment), then submit. All assignments submitted must be in a Microsoft Word, (or SPSS, or Excel format, or editable PDF where applicable) tha ...

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