Recent results suggest 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...

Recent results suggest 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 ofn = 36 children, 8 to 12 years old, who have been diagnosed with ADHD. Each child is asked to keep a journal recording how much time each day is spent watching TV. The average daily time for the sample isM = 4.9 hours. It is known that the average time for the general population of 8 to 12-year-old children isμ = 4.1 hours withσ= 1.8.
Are the data sufficient to conclude that children with ADHD watch significantly more TV than children without the disorder? Use a two-tailed test with = .05. Which of the below options is the best answer?  Answer A or B in the box
Option A. The children with ADHD are significantly different.
Option B. The children with ADHD are notsignificantly different.


If the researcher had used a sample ofn = 9 children and obtained the same sample mean, would the results be sufficient to reject H₀?  Select your answer from the below options. Answer A or B in the box
Option A. Reject H₀

Option B. Fail to reject H₀


Compute Cohen'sd for this study. (Notice that the value you obtain does not depend on whether the sample size wasn = 36 orn = 9.) (Use/round to 2 decimal places)
Cohen'sd =