Discover the value of test statistic using two-tail 'Z' distribution as well as interpret the result
A researcher is attentive in whether social assertiveness might be influenced by training procedures. Two groups of college sophomores are arbitrarily selected. Group a subjects are assigned to the 'training sessions' and Group B subjects don't receive the training. Both groups are given a Social Assertiveness test (higher scores indicate greater assertiveness). The results are the subsequent-
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Group A:
|
14
|
11
|
10
|
10
|
8
|
6
|
5
|
9
|
7
|
9
|
10
|
9
|
7
|
8
|
9
|
10
|
11
|
|
Group B:
|
12
|
10
|
10
|
8
|
7
|
6
|
4
|
2
|
5
|
4,
|
6
|
3
|
8
|
6
|
5
|
4
|
|
Perform the suitable statistical test to determine if there is a statistical difference between the two groups at the 0.05 level.