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Demographic study was conducted to verify the age distribution among residents in suburban areas. There were k= 6 age groups selected for this study. The observed frequencies and theoretical proportions under the null hypothesis are shown in the table below. Age Group Under 20 [20, 30) [30, 40) [40, 50) [50, 65) 65 and Above Total Frequency 132 148 224 62 188 46 800

Demographic study was conducted to verify the age distribution among residents in suburban areas. There were k= 6 age groups selected for this study. The observed frequencies and theoretical proportions under the null hypothesis are shown in the table below. Age Group Under 20 [20, 30) [30, 40) [40, 50) [50, 65) 65 and Above Total Frequency 132 148 224 62 188 46 800

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Demographic study was conducted to verify the age distribution among residents in suburban areas. There were k 6 age groups selected for this study. The observed frequencies and theoretical proportions under the null hypothesis are shown in the table below. Age Group Under 20 [20, 30) [30, 40) [40, 50) [50, 65) 65 and Above Total Frequency 132 148 224 62 188 46 800 Proportions 0.15 0.20 0.25 0.10 0.25 0.05 1.00 EXPECTED 1. Determine all counts expected under the null hypothesis and place them into the table above 2. Evaluate the test statistic Solution
Transcribed Image Text:Demographic study was conducted to verify the age distribution among residents in suburban areas. There were k 6 age groups selected for this study. The observed frequencies and theoretical proportions under the null hypothesis are shown in the table below. Age Group Under 20 [20, 30) [30, 40) [40, 50) [50, 65) 65 and Above Total Frequency 132 148 224 62 188 46 800 Proportions 0.15 0.20 0.25 0.10 0.25 0.05 1.00 EXPECTED 1. Determine all counts expected under the null hypothesis and place them into the table above 2. Evaluate the test statistic Solution
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