bikes

first 3 links are the examples and the answers to the example, the excel example spreadsheet has 2 tabs, 1 per question. Example 6.1 is also the original work that need to be revisited in the home question. The last 2 links are the homework assignment and a excel dataset that is needed to get question 6.9 started. you will see the instructions in question 6.9 in the homework.
Example 6.1: https://www.sendspace.com/pro/dl/zdxqk8
Example 6.3: https://www.sendspace.com/pro/dl/2klntk
Solution for Examples: https://www.sendspace.com/pro/dl/73mp7x
Homework: https://www.sendspace.com/pro/dl/a23n17
6.9 dataset: https://www.sendspace.com/pro/dl/bpa84l