SOLUTION: Two independent groups, each of 10 children, were tested in general knowledge. Test scores were as follows: Group A 7 7 6 7 9 6 8 6 6 10 Group B 6 6 4 7 8 6 6 5 6 8 Is the d

Question 363910: Two independent groups, each of 10 children, were tested in general knowledge. Test scores were as follows:
Group A 7 7 6 7 9 6 8 6 6 10
Group B 6 6 4 7 8 6 6 5 6 8
Is the difference between mean scores of the two groups significant? Use 5% level of significance.

Answer by SadieKhan(31) (Show Source): You can put this solution on YOUR website!
A B
7 6
7 6
6 4
7 7
9 8
6 6
8 6
6 5
6 6
10 8
H0: There is no difference between two groups
H1: There is a difference between two groups
Using mega stat
Hypothesis Test: Independent Groups (t-test, pooled variance)

Group 1 Group 2
7.20 6.20 mean
1.40 1.23 std. dev.
10 10 n

18 df
1.000 difference (Group 1 - Group 2)
1.733 pooled variance
1.317 pooled std. dev.
0.589 standard error of difference
0 hypothesized difference

1.70 t
.1066 p-value (two-tailed)
As P value is greater than 0.05, we fail to reject Ho and conclude that there is no difference between two groups
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