SCENARIO 11-8 An Important Factor in Selecting Database Software Is the Time

SCENARIO 11-8
An important factor in selecting database software is the time required for a user to learn how to use the system.To evaluate three potential brands (A,B and C) of database software,a company designed a test involving five different employees.To reduce variability due to differences among employees,each of the five employees is trained on each of the three different brands.The amount of time (in hours) needed to learn each of the three different brands is given below:
Below is the Excel output for the randomized block design:

-Referring to Scenario 11-9,at the 0.01 level,what conclusions can you reach from the analysis?

A) At the 0.01 level,subject visibility and test taker success are significant predictors of latency feedback.
B) At the 0.01 level,the model is not useful for predicting latency to feedback.
C) At the 0.01 level,there is evidence to indicate that subject visibility and test taker success interact.
D) At the 0.01 level,there is no evidence of interaction between subject visibility and test taker success.