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

question 4

True/False

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,the null hypothesis for the randomized block F test for the difference in the means should be rejected at a 0.05 level of significance.

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Definitions:

Effect Size

The extent to which two variables are associated. In experimental research, the magnitude of the impact of the independent variable on the dependent variable.

Independent Variable

A variable that is manipulated or controlled in an experiment to observe its effect on a dependent variable.

Field Experiments

Research studies conducted in natural settings outside the laboratory to investigate the effect of manipulated variables in real-world situations.

Exact Replication

A type of replication of research using the same procedures for manipulating and measuring the variables that were used in the original research.