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Do Children Diagnosed with Attention Deficit/hyperactivity Disorder (ADHD) Have Smaller

Question 4

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Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL.
-State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD.


A) Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus versus Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus
B) Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus versus Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus
C) Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus versus Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus
D) Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus versus Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus
E) Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus versus Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus F. Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus versus Do children diagnosed with attention deficit/hyperactivity disorder (ADHD) have smaller brains than children without this condition? Brain scans were completed for 152 children with ADHD and 139 children of similar age without ADHD. The mean brain size for the 152 children with ADHD was 1059.4 mL with a standard deviation of 117.5 mL. The mean brain size for the 139 children of with-out ADHD was 1104.5 mL with a standard deviation of 111.3 mL. -State the appropriate null and alternative hypotheses for this research question, where 1 = ADHD and 2 = Without ADHD. A) versus B) versus C) versus D) versus E) versus F. versus

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