A 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? Useα
= .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
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