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Heavy children: Are children heavier now than they were in the past? The National Health and Nutrition Examination Survey (NHANES) taken between 1999 and 2002 reported that the mean weight of six-year-old girls in the United States was 49.3 pounds. Another NHANES survey, published in 2008, reported that a sample of 192 six-year-old girls weighed between 2003 and 2006 had an average weight of 47 pounds. Assume the population standard deviation is o=14.2 pounds. Can you conclude that the mean weight of six-year-old girls is lower in 2006 than in 2002? Use the α=0.05 level of significance and the P-value method with the TI-84 calculator. Part 1 of 4 State the appropriate null and alternate hypotheses. Ho: μ = 49.3 H: μ < 49.3 The hypothesis test is a left-tailed Part: 1/4 Part 2 of 4 Compute the P-value. Round your answer to at least four decimal places. P-value= ▼test. X

Heavy children: Are children heavier now than they were in the past? The National Health and Nutrition Examination Survey (NHANES) taken between 1999 and 2002 reported that the mean weight of six-year-old girls in the United States was 49.3 pounds. Another NHANES survey, published in 2008, reported that a sample of 192 six-year-old girls weighed between 2003 and 2006 had an average weight of 47 pounds. Assume the population standard deviation is o=14.2 pounds. Can you conclude that the mean weight of six-year-old girls is lower in 2006 than in 2002? Use the α=0.05 level of significance and the P-value method with the TI-84 calculator. Part 1 of 4 State the appropriate null and alternate hypotheses. Ho: μ = 49.3 H: μ < 49.3 The hypothesis test is a left-tailed Part: 1/4 Part 2 of 4 Compute the P-value. Round your answer to at least four decimal places. P-value= ▼test. X

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Heavy children: Are children heavier now than they were in the past? The National Health and Nutrition Examination Survey (NHANES) taken between 1999 and 2002 reported that the mean weight of six-year-old girls in the United States was 49.3 pounds. Another NHANES survey, published in 2008, reported that a sample of 192 six-year-old girls weighed between 2003 and 2006 had an average weight of 47 pounds. Assume the population standard deviation is 6=14.2 pounds. Can you conclude that the mean weight of six-year-old girls is lower in 2006 than in 2002? Use the α=0.05 level of significance and the P-value method with the TI-84 calculator. Part 1 of 4 State the appropriate null and alternate hypotheses. Ho: μ = 49.3 H: μ < 49.3 The hypothesis test is a left-tailed Part: 1/4 Part 2 of 4 Compute P-value= test. P-value. Round your answer to at least four decimal places. X
Transcribed Image Text:Heavy children: Are children heavier now than they were in the past? The National Health and Nutrition Examination Survey (NHANES) taken between 1999 and 2002 reported that the mean weight of six-year-old girls in the United States was 49.3 pounds. Another NHANES survey, published in 2008, reported that a sample of 192 six-year-old girls weighed between 2003 and 2006 had an average weight of 47 pounds. Assume the population standard deviation is 6=14.2 pounds. Can you conclude that the mean weight of six-year-old girls is lower in 2006 than in 2002? Use the α=0.05 level of significance and the P-value method with the TI-84 calculator. Part 1 of 4 State the appropriate null and alternate hypotheses. Ho: μ = 49.3 H: μ < 49.3 The hypothesis test is a left-tailed Part: 1/4 Part 2 of 4 Compute P-value= test. P-value. Round your answer to at least four decimal places. X
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