Purchase Solution

Pediatric lung function vs level of cigarette smoking in home

Not what you're looking for?

Ask Custom Question

One suggested environmental determinant of pediatric lung function is the level of cigarette smoking in the home. A researcher wants to do a pilot study with two groups:

Group 1 will consist of children up to 5 years of age with a mean FEV = 2.1 with standard deviation = 0.7. Both of the parents of these children will smoke.

Group 2 will consist of children up to 5 years of age with a mean FEV = 2.3 with standard deviation = 0.4. Neither of the parents of these children will smoke.

How many children will be needed in each group to have a 95% chance of detecting a significant difference using a two-sided test with alpha = 0.05?

A) 212 per group
B) 106 per group
C) 414 per group
D) 53 per group

Purchase this Solution
Solution Summary

The expert examines a test for pediatric lung functions versus level of cigarette smoking in home.

Solution Preview

Suppose the test is conducted by taking two samples of equal size. Assume N be the sample size.
The test statistic is , where denote the standard deviation of the population. Since population ...

Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

View More Free Quizzes
Related BrainMass Solutions

  • Measuring Disease

    654001 Measuring Disease A causal relationship between cigarette smoking and lung cancer was first suspected in the 1920s on the basis of clinical observations.

  • Figures Relating to Cigarette Smoking and Cancer

    72645 Figures Relating to Cigarette Smoking and Cancer Consider the following approximate figures relating to cigarette smoking and cancer. The death rate in the US population of 260 million is 12 deaths per 1000 persons per year.

  • Variable and Averages

    This solution uses an example of cigarette smoking and lung disease and provides a null and alternative hypothesis. It calculates the z-statistic and compares it to the level of significance to accept or reject the null hypothesis.

  • Risk Factors of Different Cancers

    Smoking in relation to the death rates of one million men and women. 2. Auerbach, O., Stout, A. P., Hammond, E. C., & Garfinkel, L. (1961). Changes in bronchial epithelium in relation to cigarette smoking and in relation to lung cancer.

  • The health effects of smoking and solutions to quit

    One of the health effects of cigarette smoking is the fact that cigarette smoking increases an individual's chances of developing lung cancer exponentially over time.

  • Purpose of Investigation to Formulate Potential Solutions

    Within twelve hours of quitting the smoking, the level of carbon monoxide in the blood drops to normal. 

  • The affects of tobacco use on the human respiratory system

    In summary, cigarette smoking affects the respiratory system by clogging the cilia and creates tar linings within the lungs. As mentioned previously, smoking a cigarette produces CO, which is a by product of combustion.

  • a critical evaluation

    If cigarette smokers are warned of the hazards of smoking and they continue to smoke, then they cannot sue tobacco companies for any resulting lung cancer or emphysema. Cigarette smokers are warned of the hazards of smoking.

  • Now that cigarette smoking has been clearly tied to lung can

    We can arrange the data in Excel and plot t he death as a function of the number of people smoking.

View More Related Solutions