A Study Was Conducted to Determine If Differences in New

question 77

Multiple Choice

A study was conducted to determine if differences in new textbook prices exist between on-campus bookstores, off-campus bookstores, and Internet bookstores. To control for differences in textbook prices that might exist across disciplines, the study randomly selected 12 textbooks and recorded the price of each of the 12 books at each of the three retailers. You may assume normality and equal-variance assumptions have been met. The partially completed ANOVA table based on the study's findings is shown here: Based on the study's findings, was it correct to block for differences in textbooks? Conduct the appropriate test at the alpha = 0.10 level of significance.

• A) Since F = 39.05 > Fα=0.10 = 1.88, reject the null hypothesis. This means that based on these sample data we can conclude that blocking is effective.
• B) Since F = 39.05 > Fα=0.10 = 1.88, do not reject the null hypothesis. This means that based on these sample data we can conclude that blocking is not effective.
• C) Since F = 40.05 > Fα=0.10 = 1.88, reject the null hypothesis. This means that based on these sample data we can conclude that blocking is effective.
• D) Since F = 40.05 > Fα=0.10 = 1.88, do not reject the null hypothesis. This means that based on these sample data we can conclude that blocking is not effective

---

Definitions:

Supervisory Relationships

describes the dynamic and interaction between supervisors and their subordinates, focusing on guidance, support, and performance management.

Organization Chart

A diagram that shows the structure of an organization and the relationships and relative ranks of its parts and positions/jobs.

Informal Decision-Making Coalitions

Groups formed within organizations without official status that influence decisions through informal networks and relationships.

Formal Communication Channels

Structured pathways through which official information flows within an organization, such as memos, emails, and meetings.