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QID: #6760
Solution for QID #6760: Heavy childrenState the appropriate null and alternate hypot | StudyHelpMe
Heavy childrenState the appropriate null and alternate hypotheses. H0: u = 49.3H1: u < 49.3 : 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 191 six-year-old girls weighed between 2003 and 2006 had an average weight of 48 pounds. Assume the population standard deviation is = 16 pounds. Can you conclude that the mean weight of six-year-old girls lower in 2006 than in 2002? Use the a = 0.05 level of significance and the P-value method with the table.
Part 1/5
This hypothesis test is a left-tailed test.
Part 2/5
Compute the value of the test statistic. Round the answer to at least two decimal places.
z = -1.12
Part 3/5
Find the P-value. Round the answer to at least four decimal places.
P-value =
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