A school psychologist is interested in determining if children with attention deficit hyperactivity disorder (ADHD) learn better if English literature is read to them rather than having them read the material alone by themselves. A random sample of 10 sixth graders with ADHD is selected and divided into two groups of n=9. One of the groups has a story read to them (Listening Group) and the other reads the story alone by themselves (Reading Group). A test on the story is given after each group has finished reading or hearing the story. The following scores were obtained with 20 being a perfect score.what is the S(M1-M2)? Two-sample t-test, Independent groupsReading GroupListening Group101510127.1312111089.10119.101111Count(n)МeanDEVSQ(SS)STDEV.SdfS(M1-M2)alphatcritReject HoFail to reject HotobsDecisionCohen's d&@23248.9.23ryekdfbmCValtV. t-Test: Two-Sample Assuming Equal VariancesG1G2Mean8.77777777811.44444444Variance3.9444444443.277777778Observations9.Pooled Variance3.611111111Hypothesized Meandf16t Stat-2.97683363P(T<=t) one-tailt Critical one-tail0.0044495531.745883676P(T<=t) two-tail0.008899105t Critical two-tail2.119905299DII96%239.4.1ewtabkabCVshiftaltalt

Answered: A school psychologist is interested in…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 3GP

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A school psychologist is interested in determining if children with attention deficit hyperactivity disorder (ADHD) learn better if English literature is read to them rather than having them read the material alone by themselves. A random sample of 10 sixth graders with ADHD is selected and divided into two groups of n=9. One of the groups has a story read to them (Listening Group) and the other reads the story alone by themselves (Reading Group). A test on the story is given after each group has finished reading or hearing the story. The following scores were obtained with 20 being a perfect score. what is the S(M1-M2)?

Two-sample t-test, Independent groups
Reading Group
Listening Group
10
15
10
12
7.
13
12
11
10
8
9.
10
11
9.
10
11
11
Count(n)
Мean
DEVSQ(SS)
STDEV.S
df
S(M1-M2)
alpha
tcrit
Reject Ho
Fail to reject Ho
tobs
Decision
Cohen's d
&
@
23
24
8.
9.
2
3
r
y
e
k
d
f
b
m
C
V
alt
V.

t-Test: Two-Sample Assuming Equal Variances
G1
G2
Mean
8.777777778
11.44444444
Variance
3.944444444
3.277777778
Observations
9.
Pooled Variance
3.611111111
Hypothesized Mean
df
16
t Stat
-2.97683363
P(T<=t) one-tail
t Critical one-tail
0.004449553
1.745883676
P(T<=t) two-tail
0.008899105
t Critical two-tail
2.119905299
DII
96
%23
9.
4.
1
e
w
tab
k
a
b
C
V
shift
alt
alt

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