http://www.cengage.com/marketing/book_content/1439080674_zikmund/book/ch24.pdf I need questions # 6 and 7 completed

6. A researcher dismisses a regression result because the model R2 was under 0.70. Do you think this was necessarily wise? Explain.
Answer:
Coefficient of determination, R2 shows how strong the relationship between the variables. R-square with value of zero indicates there is no relationship between the variables. R-square with value less than 0.70 is an indication of moderate or weak relationship between the variables. Therefore, it is not considered to be a good fit. The value above 0.70 indicates strong...