Which Hypothesis Is Nondirectional

question 10

Multiple Choice

Which hypothesis is nondirectional?

• A) Hospitals with an infection-control nurse will have fewer instances of sepsis among inpatients than hospitals without an infection-control nurse.
• B) There will be a greater weight loss among dieting patients who receive a weekly supportive telephone call from a dietitian than among dieting patients who do not receive a weekly supportive phone call.
• C) There will be a difference in stage of disease for prostate cancer among men who had an abnormal prostate-specific antigen ( PSA ) screening compared with men who had an abnormal digital rectal examination ( DRE ) screening.
• D) Children who receive weekly counseling for one year after the death of a parent will perform better in school than children who do not receive weekly counseling after the death of a parent.

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Definitions:

Unlevered Cost

The cost of capital for a project or investment without taking into account the effects of debt financing.

Pre-Tax Cost

The cost of an expense or investment before the impact of taxes is considered.

Debt-Equity Ratio

A calculation that indicates the financial leverage of a firm, determined by dividing its overall liabilities by the equity of the shareholders.