Twenty-One Executives in a Large Corporation Were Randomly Selected to Study

question 47

Multiple Choice

Twenty-one executives in a large corporation were randomly selected to study the effect of several
Factors on annual salary (expressed in $000s) . The factors selected were age, seniority, years of
College, number of company divisions they had been exposed to, and the level of their
Responsibility. The results of the regression analysis follow:
Test the hypothesis that the regression coefficient for age is equal to 0 at the 0.05 significance
Level. Report the critical value, the calculated test-statistic, and your decision.

• A) t-critical = ±2.131, t-calculated = -0.169, fail to reject.
• B) t-critical = ±2.131, t-calculated = -0.183, fail to reject.
• C) t-critical = ±1.753, t-calculated = -0.169, fail to reject.
• D) t-critical = ±1.753, t-calculated = -0.169, reject.

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Definitions:

Cones

Photoreceptor cells in the retina of the eye that are responsible for color vision and function best in relatively bright light.

Human Retina

The light-sensitive layer of tissue at the back of the inner eye, which contains photoreceptor cells that convert light into neural signals.

Total Color Blindness

A rare condition where an individual cannot perceive any color at all, seeing only shades of gray.

Rubella Virus

A contagious virus causing rubella (German measles), characterized by a rash and fever, important for its danger to pregnant women due to potential birth defects.