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Chapter 7: Q. 1 (page 454)

Healthy Living From a large group of people who signed a card saying they intended to quit smoking, 1000 people were selected at random. It turned out that 210(21%) of these individuals had not smoked over the past 6 months.

Short Answer

Expert verified

All people who signed a card promising to quit smoking were included in the population.

  • 1000participants were chosen at random after signing a card stating their intention to quit smoking.
  • Statistic: p=sample proportion of those who haven't smoked in the previous 6months=21%=0.21.
  • p=the proportion of people in the population who haven't smoked in the last six months.

Step by step solution

01

Given information

We need to find out the population, parameter, sample, and statistics.

02

Explanation

The 21percent is based on the 1000persons in the sample, therefore it represents the sample proportion of people who haven't smoked in the previous six months, implying that 21percent is a statistic.

The population proportion of people who haven't smoked in the last six months is the comparable parameter.

Statistic: p=sample proportion of those who haven't smoked in the previous 6months=21%=0.21

p=the proportion of people in the population who haven't smoked in the last six months.

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