A Study by One of the Text Authors (Prochaska,2004)investigated a Proactive

question 14

Multiple Choice

A study by one of the text authors (Prochaska,2004) investigated a proactive population-based intervention with a representative sample of 5,000 smokers and found that services were used by:

• A)20% of the targeted population.
• B)40% of the targeted population.
• C)65% of the targeted population.
• D)80% of the targeted population.

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Definitions:

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values.

Normal Distribution

A statistical distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Mean

A statistical measure that represents the average value of a set of numbers, calculated by dividing the sum of all values by the number of values.

P < .05

A statistical notation indicating that the probability of the observed data (or something more extreme) given that the null hypothesis is true is less than 5%, suggesting the findings are statistically significant.