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

question 110

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:

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

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Definitions:

Compounded Monthly

Involves calculating and adding interest to the principal amount of an investment or loan on a monthly basis.

Deferred Annuity

An annuity where the start of the periodic payments is delayed by more than one payment interval.

Compounded Annually

The process where interest is calculated once per year and added to the principal sum, affecting the total amount and future interest calculations.

Lump Amount

A single payment made at a particular time, as opposed to several smaller payments or installments.