A Besearch team has developed medication to ADHD. They think that their new do a

Question

A Besearch team has developed medication to ADHD. They think that their new do a than medica asas local doekes to mached other children taking the udy in which aewly diagroiedchildren with ADI ltitutes of the children. The euraert mediealion hacied on syrlpoors and physi lo determine the effectivencis ofthe treatmetls leam will ther lest all the children afin more sovere symptoms) N with a standardized symprom score-ho thigh What are the null and ahensalive what oeit ihould be ised! why that inst? the following inleret compute the test M-515, variance 2.11 df 60 M What is the cutoff values Should the researcher Retain Ha 1erpret the findings

Explanation / Answer

H0 : There is no significance difference between old and new medications

H1 : There is significance difference between old and new medications

Given N = 61, when N > 30, we use Z test

Mean (u) = 5.18

Variance (s) = 2.11

N = 60

df = 60

Z = ( X- U)/ (s/sqrt(n))

X = u ± Z * s / sqrt(n)

= 5.18 ± 1.96 * 2.11 / sqrt(60)

= 5.18 ± 0.5339

= 4.64 to 5.7139

Cut offs values are 4.64 to 5.7139

H0 is satisfied when X = 4.64 to 5.714 else Ha

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