math
beauti33
question.docxA clinical psychology student wanted to determine if there is a significant difference in the Picture Arrangement scores (a subtest of the WAIS-IV that some feel might tap right-brain processing powers) between groups of right- and left-handed college students. The scores were as follows:
|
Picture Arrangement Scores |
|
|
Left-Handed Students |
Right-Handed Students |
|
12 |
8 |
|
10 |
10 |
|
12 |
10 |
|
14 |
12 |
|
12 |
11 |
|
10 |
6 |
|
8 |
7 |
a. Is there a significant difference in the Picture Arrangement scores between the right- and left-handed students? Use α = .05 in making your decision. Be sure to state your hypotheses and include the following, if necessary – test statistic, degrees of freedom, computations, critical value(s)…
b. What is the 95% confidence interval for the difference between the means?
