A Researcher Wishes to Study Whether a Particular Diet Is

question 53

Essay

A researcher wishes to study whether a particular diet is effective in helping people to lose weight. 86 randomly selected adults were weighed before starting the diet and again after following the diet for one month. 47 people lost weight, 37 gained weight, and 2 observed no change in their weight. At the 0.01 significance level, test the claim that the diet is effective.

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Definitions:

Four Unrelated Words Test

A cognitive test used to evaluate immediate memory and attention by recalling four unrelated words.

Cognitive Function

Refers to various mental abilities including learning, thinking, reasoning, remembering, problem solving, decision making, and attention.

Cognitive Function

The mental processes involved in gaining knowledge and comprehension, including thinking, knowing, remembering, judging, and problem-solving.

Intensive Care Unit

A specialized department in a hospital that provides intensive treatment medicine for people who are critically ill or injured.