An Investigation of the Effectiveness of a Training Program to Improve

question 46

Multiple Choice

An investigation of the effectiveness of a training program to improve customer relationships included a pre-training and post-training customer survey. To compare the differences they computed (post-training survey score - pre-training survey score) . Seven customers were randomly selected and completed both surveys. The results follow. For a 0.05 significance level, what is the critical value?

• A) 1.943
• B) 1.895
• C) 1.645
• D) 2.447

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Definitions:

Selective Gene Expression

This describes the process by which certain genes are activated to produce a specific set of proteins in different cell types, conditions, or stages of development.

Cell Differentiation

The process by which a less specialized cell becomes a more specialized cell type, crucial in development and specialization of functions.

Embryo

In animals, a developing individual from first cleavage until hatching or birth; in humans, usually refers to an individual during weeks 2 to 8 of development.