Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Q2 17 Points According to the CDC, obesity rates among U.S. children have increased dramatically over the past three decades, from a low of about

image text in transcribed
Q2 17 Points According to the CDC, obesity rates among U.S. children have increased dramatically over the past three decades, from a low of about 5% to 18% in 2010. A study examined the effect of family-based food-counselling sessions provided by trained professionals. The study randomly assigned obese children aged 9 to 12 years to either the counselling intervention or a control group not receiving any food counselling the children's weight changes (in pounds, lb) after 15 weeks are stored in the "weights" file. To load the file run the code chunk on the Quiz_6.Rmd file, it would load two vectors "Control" and "Intervention". Use these two vectors to answer the following questions: Q2.1 Short Answer Problem 3 Points Use R functions mean(), sd(), length() to report the mean, standard deviation, and length (number of records) for the Intervention group and Control group. Record your results to three decimal places where appropriate. Report below The number of children in Intervention group; Sample Mean weight change in Intervention group; and Sample standard deviation weight change in Intervention group: Enter your answer here The Number of children in Control group; Sample Mean weight change in Control group; Sample standard deviation weight change in Control group: Enter your answer here

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access with AI-Powered Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

The Practice Of Statistics

Authors: Daren S. Starnes, Josh Tabor

6th Edition

978-1319113339

Students also viewed these Mathematics questions