Construct contingency tables based on total percentages,

| March 13, 2016

Question
a. Construct contingency tables based on total percentages, row percentages, and column percentages.
b. Which type of percentage—row, column, or total—do you think is most informative for these data? Explain.
c. What conclusions concerning the pattern of successful Kickstarter projects can you reach?

A study of Kickstarter projects showed that 54.2% were successful,

that is, achieved its goal and raised at least the targeted goal

amount. In an effort to identify network dynamics that influences

success, projects were subdivided into projects of owners who had

backed other projects before, during or after creating their project

(owners with backing history) and projects of owners without backing

history. The results are as follows:

Backing No Backing
Project Outcome History History Total
Successful 17,667 19,202 36,869
Not Successful 10,921 20,267 31,188
Total 28,588 39,469
68,057

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