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

question 73

Multiple Choice

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, what is the null hypothesis for testing the block effects?

• A) H₀: μA = μB = μC
• B) H₀: μ₁ = μ₂ = μ₃ = μ₄ = μ₅
• C) H₀: MA = MB = MC
• D) H₀: M₁ = M₂ = M₃ = M₄ = M₅

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Definitions:

Principle Supply Chain

Refers to the fundamental elements and processes involved in moving a product from supplier to customer, including production, transportation, and distribution.

Information Requirements

The specific data needs of a business or system to operate effectively and make informed decisions.

Fact-based Decision-making

The practice of making decisions based on the thorough analysis of factual data rather than intuition or observation alone.

SaaS

Software as a Service, a cloud computing model that provides access to software over the internet on a subscription basis.