Doctors at a Technology Research Facility Randomly Assigned Equal Numbers

question 69

Multiple Choice

Doctors at a technology research facility randomly assigned equal numbers of people to use computer keyboards in two rooms. In one room a group of people typed a manuscript using standard keyboards, while in the other room people typed the same manuscript using ergonomic keyboards to see if those people could type more words per minute. After collecting data for several days the researchers tested the hypothesis H₀: µ₁ - µ₂ = 0 against the one-tail alternative and found a P-value of 0.22. Which is true?

• A) None of these.
• B) The people using ergonomic keyboards type 22% more words per minute.
• C) There's a 22% chance another experiment will give these same results.
• D) There's a 22% chance that people using ergonomic keyboards type more words per minute.
• E) There's a 22% chance that there's really no difference in typing speed.

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Definitions:

Eating Disorders

Mental disorders characterized by abnormal or disturbed eating habits, which can significantly impact one's health and well-being.

Binge-Eating Disorder

A disorder characterized by recurrent episodes of eating large quantities of food in a short period of time, often accompanied by feelings of loss of control and guilt.

Diagnostic Criteria

The specific conditions and signs that must be present for a healthcare professional to diagnose a particular disorder or disease.

Obesity

A medical condition characterized by excess body fat that increases the risk of health problems.