Heavy children: Are children heavier now than they were in

Last updated: 7/23/2022

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 205 six-year-old girls weighed between 2003 and 2006 had an average weight of 50.2 pounds. Assume the population standard deviation is a = 15.3 pounds. Can you conclude that the mean weight of six-year-old girls in 2006 is different from what it was in 2002? Use the a = 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:u= 49.3 H₁: = 49.3 The hypothesis test is a two-tailed ▼test. Part: 1/4 - Part 2 of 4 Compute the P-value. Round your answer to at least four decimal places. P-value=