TABLE 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:
-True or False: Referring to Table 11-8,there is evidence of a significant difference in the mean amount of time needed to learn Brand B and Brand C at the 5% level of significance.

Question

TABLE 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: 
-True or False: Referring to Table 11-8,there is evidence of a significant difference in the mean amount of time needed to learn Brand B and Brand C at the 5% level of significance.

Quizplus · Accepted Answer

In Table 11-8, the p-value for comparing Brand B and Brand C is 0.028, which is less than the significance level of 0.05. Therefore, we reject the null hypothesis and conclude that there is evidence of a significant difference in the mean amount of time needed to learn Brand B and Brand C at the 5% level of significance.

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