A study was conducted among n = 500 individuals, with 300 smokers and 200 non-smokers included. The objective was to test whether the allergy symptoms depend on their smoking preferences. A two-by-two contingency table summarized observed frequencies as follows. Group Allergic No Allergy Total Smokers 165 135 300 Non-Smokers 85 115 200 Total 250 250 500 At the significance level a = 0.01, test whether smoking habits and allergic symptoms are related to each other. 1. Evaluate estimated expected counts and place them into the table below. 2. Derive the test statistic for testing homogeneity hypothesis 3. Formulate the rejection rule and make a conclusion whether there is dependence between smoking habits and allergy symptoms. Estimated Expected Counts Group Allergic No Allergy Total Smokers 300 Non-Smokers 200 Total 250 250 500 Solution 6.

A study was conducted among n = 500 individuals, with 300 smokers and 200 non-smokers included. The objective was to test whether the allergy symptoms depend on their smoking preferences. A two-by-two contingency table summarized observed frequencies as follows. Group Allergic No Allergy Total Smokers 165 135 300 Non-Smokers 85 115 200 Total 250 250 500 At the significance level a = 0.01, test whether smoking habits and allergic symptoms are related to each other. 1. Evaluate estimated expected counts and place them into the table below. 2. Derive the test statistic for testing homogeneity hypothesis 3. Formulate the rejection rule and make a conclusion whether there is dependence between smoking habits and allergy symptoms. Estimated Expected Counts Group Allergic No Allergy Total Smokers 300 Non-Smokers 200 Total 250 250 500 Solution 6.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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