Coffee for Breakfast in the 1960's Was a Commonplace Method

question 45

Short Answer

Coffee for breakfast in the 1960's was a commonplace method of becoming more alert for classes among college students.However,coffee makers have seen a decline in U.S.coffee consumption and are obviously concerned about it.One coffee maker decides to estimate the proportion of college students (likely candidates for coffee)who drink coffee for breakfast nationally.The proportion of the total population who drink coffee for breakfast is about 0.55.The coffee maker decides to use 0.55 as the value for p in determining the sample size to select from among college students.A 92% confidence interval is chosen and the estimate,p,is to be within 0.05 of the true proportion of college students who drink coffee for breakfast.Compute the needed sample size.

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Definitions:

Source Traits

Fundamental personality characteristics that are inferred from consistent behavior patterns and are believed to be the origin of observable behaviors.

Environmental-mold Traits

Characteristics of personality believed to be shaped by environmental factors rather than genetic inheritance.

Constitutional Traits

Source traits that depend on our physiological characteristics.

Source Traits

Fundamental personality characteristics that are stable over time and across situations, forming the foundation of an individual's personality.