A Multinational Firm Manufactures Several Types of 1280 × 1024

question 51

Multiple Choice

A multinational firm manufactures several types of 1280 × 1024 LCD displays in several locations. They designed a sampling experiment to analyze the number of pixels per screen that have significant color degradation after 52,560 hours (six years of continuous use) using accelerated life testing. The Excel ANOVA table for their experiment is shown below. Some table entries have been obscured. The response variable (Y) is the number of degraded pixels in a given display. $$\begin{array} { | l | c | c | c | c | } \hline \text { Source of Variation } & S S & d f & M S & F \\\hline \text { Country of origin } & 202.9 & & 101.45 & 4.163475 \\\hline \text { Display type } & 233.2333 & & 58.30833 & \\\hline \text { Interaction } & 147.7667 & & 18.47084 & \\\hline \text { Error } & 1096.5 & 45 & 24.36667 & \\\hline \text { Total } & 1680.4 & 59 & & \\\hline\end{array}$$ How many display types were there?

• A)1
• B)2
• C)3
• D)5

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Definitions:

Operant Extinction

The process in behavioral psychology where the frequency of a previously reinforced behavior decreases when that behavior is no longer reinforced.

Belittling Behavior

Actions or comments meant to diminish someone’s sense of self-worth or accomplishments.

ABAB Design

A research design for evaluating the effect of a treatment by repeatedly alternating between a baseline period and a treatment phase.

Therapeutic Intervention

A strategic action or treatment, often within the context of psychotherapy, designed to help individuals overcome issues or attain better functioning.