6. A researcher predicts that watching violent television shows causes children to act more
violently
than children who do not watch violent television shows. To test this, she
compares the number of violent acts of children who just watched a violent television show
with
the number of violent acts of children who did not watch a violent television show. The
results are as follows: (5 points)
Violent Show (Group 1)
No Show (Group 2)
7
2
6
1
4
7
4
7
7
6
3
Is this a one- or two-tailed test?
4
6
3
2
1
0
5
152
4
2
What is the alternative hypothesis?
What is the null hypothesis?
With a .05, what is the critical t value (teit)?
What is the obtained t value (tab)?
Is there a relationship between watching violent television and committing violent acts? If
so, describe how strong it is.