Compute Cohen's d for this study

MATLAB: An Introduction with Applications
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Compute Cohen's d for this study
Transcribed Image Text:Compute Cohen's d for this study
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, u = 4.1 hrs, o = 1.8, and is normally distributed.
If the researcher had only used a sample of n = 9 children and obtained the same sample mean, would the results be sufficient to reject H0?
Transcribed Image Text: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, u = 4.1 hrs, o = 1.8, and is normally distributed. If the researcher had only used a sample of n = 9 children and obtained the same sample mean, would the results be sufficient to reject H0?
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