Please use the following information to answer questions 23-25: Recent research suggests that children with ADHD tend to watch more TV than children who are not diagnosed with the disorder. To examine this relationship, a researcher obtains a random sample of n = 36 children aged 8-12 yrs old who have been diagnosed with ADHD. Each child is asked to keep a journal recording how much time they spend watching TV. The average daily TV time in the sample is 4.9 hours. It is known that in the population of 8-12 yr old children, μ = 4.1 hrs, σ = 1.8, and is normally distributed. Are the data sufficient to conclude that children with ADHD watch significantly more TV than children without the disorder? Use an α = .05. Based on the calculated test statistic, would you reject the null hypothesis established in question 23 (MUST SHOW WORK FOR THIS PROBLEM)? Group of answer choices a. yes b. no Based on the previously conducted steps, we can conclude (MUST SHOW WORK FOR THIS PROBLEM): Group of answer choices a. Children with ADHD watch significantly less TV b. Children with ADHD watch an equal amount of TV compared to children that are not diagnosed with ADHD c. Children with ADHD watch significantly more TV d. We cannot make any meaningful conclusion at this time

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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Please use the following information to answer questions 23-25:

Recent research suggests that children with ADHD tend to watch more TV than children who are not diagnosed with the disorder. To examine this relationship, a researcher obtains a random sample of n = 36 children aged 8-12 yrs old who have been diagnosed with ADHD. Each child is asked to keep a journal recording how much time they spend watching TV. The average daily TV time in the sample is 4.9 hours. It is known that in the population of 8-12 yr old children, μ = 4.1 hrs, σ = 1.8, and is normally distributed.

Are the data sufficient to conclude that children with ADHD watch significantly more TV than children without the disorder? Use an α = .05.

Based on the calculated test statistic, would you reject the null hypothesis established in question 23 (MUST SHOW WORK FOR THIS PROBLEM)?

Group of answer choices

a. yes

b. no

Based on the previously conducted steps, we can conclude (MUST SHOW WORK FOR THIS PROBLEM):

Group of answer choices

a. Children with ADHD watch significantly less TV

b. Children with ADHD watch an equal amount of TV compared to children that are not diagnosed with ADHD

c. Children with ADHD watch significantly more TV

d. We cannot make any meaningful conclusion at this time

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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