D Datasets

All the datasets are available at Virtual Campus.

For Regression Analysis

Remember to conduct a complete regression analysis with the following steps:

  1. Describe the dataset.
  2. Create a scatter plot of this data and add a regression line.
  3. What is the slope?
  4. What is the intercept?
  5. Is the relationship at least approximately linear?
  6. Test if the slope is significantly different from 0.
  7. Comment on possible assumption violations for the test of the slope.
  8. Predict the dependent variable
  9. Interpret the Coefficient of Determination \(R^2\) and \(\text{Adjusted-}R^2\)

Tips on reporting

  • Do not include every possible chart and frequency.
  • Think back to the key question of interest and answer this question.
  • Briefly talk about every chart and table you include but don’t discuss every number if the table is included.
  • Percentages should be rounded to whole numbers unless you are dealing with very small numbers e.g. 0.01%

References

  • McClave, James, T. et al. Statistics for Business and Economics, eBook, Global Edition. Available from: VitalSource Bookshelf, (13th Edition). Pearson International Content, 2018.