Statistics

Health issues due to being overweight affect all age groups. of children and adolescents 6-11 years of age,18.8% are found to be overweight. A school district randomly sampled 130 in this age group and found that 20 were considered overweight. at Alpha =.05 is this less than the national proportion?

I have worked this out but got a different answer so I need to see if I am doing this correctly.
This is what I have X=263, N=500, Alpha =.05 H0 p=.47 h1 p not = .47this is the claim.

  1. 👍 0
  2. 👎 0
  3. 👁 254
  1. p hat = x/n = 263/500 = .526

    z = (.526-.47)/√.526*.474/500)
    z = 0.056/√.249324/500)
    z = 2.50779
    P-value = 0.0121

    1. 👍 0
    2. 👎 0
  2. Think you messed up z=(.526-.47)/sqrt.526*.474/500)it should be Z=(.526-.47)/(.47)(.53)/sqrt 500 = am I right Sir

    1. 👍 0
    2. 👎 0
  3. .526-.470 = 0.056

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. spanish

    16. In Colombia, ________. (1 point) children are not required to go to school children are required to go to school until they are about 9 children are required to go to school until they are 14 children are required to go to

  2. Health Check answers plz

    Can someone check my answers? 1. Obesity is the condition of being significantly overweight. A. True**** B. False 2. Obesity is body weight that is normal for that particular age, sex and height. A. True B. False**** 3. The number

  3. U.S. History

    Between 1763 and 1815, most of the population was made up of indentured servants, slaves, women, children, and the working class. Even so, policies were written mainly by white, male landowners. Which answer explains why this was

  4. Life orientaion

    South Africa has many environmental issues tha pose a major challenge to our health. These issues can make one sick. Write two paragraph. Choose one issues from your list as your topic and provide two brief description of the

  1. Health

    Which aspect of health would this scenario affect? A friend sends you a hurtful e-mail. Social Health. Mental Health. Emotional Health. (MY ANSWER)

  2. Statistics

    Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem for adolescents (McGee, Williams, Howden-Chapman, Martin, & Kawachi, 2006). In a representative study, a sample of

  3. Ms. Sue PLZ HELP!!!(Civics)

    Which of the following is true about foreign and domestic affairs? A. They are completely separate types of policy issues that do not affect one another. B. Leaders must consider how one type of policy may affect the other since

  4. Math

    Hi can someone please help me? A recent study gave the information shown in the table about ages of children receiving toys. The percentages represent all toys sold. Age (years) Percentage of Toys 2 and under 3-5 6-9 10-12 13 and

  1. college psychology

    Developmental psychologists study all of the following EXCEPT: -What part of the brain is involved in the development of depression - Smoking trends of adolescents - Prenatal development - Aging issues of the elderly - How

  2. Psychology

    Please check my answers... 1. Asthma is associated with environmental conditions. True 2. Only one-half of U.S. children with asthma follow their doctor's advice about medication. False 3. The percentage of overweight children has

  3. Math

    Jane is x years old today. Her brother Kenny is 4 years older. After seven years their total combined age will be 24 years. Write a linear equation for their total combined age after seven years. Fine James age today.

  4. Math

    At age 2, a cat or dog is considered 24 "human" years old. Each year after age 2 is equivalent to 4 "human" years. Fill in the expression [24 + X (a-2)] so that it represents the age of a cat or dog in human years. Copy the chart

You can view more similar questions or ask a new question.