In: Statistics and Probability
A team of comparative psychologists are interested in the
maternal behavior or rats. In an experiment, 10, 20, and 25 day-old
rat pups were separated from their mothers. They then recorded the
time (in seconds) required for the mother rats to retrieve the
pups. The psychologists were interest in whether retrieval time
varies with age. The data are given below. What can be concluded
with an α of 0.05?
10 days old |
20 days old |
25 days old |
---|---|---|
16 11 26 16 21 19 |
31 16 21 26 24 23 |
56 26 41 34 36 31 |
Make an interpretation based on the results.
At least one of the rat pup ages differed on the mother retrieval time.None of the rat pup ages differed on the mother retrieval time.
e) Conduct Tukey's Post Hoc Test for the following
comparisons:
1 vs. 3: difference = ;
significant: ---Select--- Yes No
1 vs. 2: difference = ;
significant: ---Select--- Yes No
f) Conduct Scheffe's Post Hoc Test for the
following comparisons:
1 vs. 2: test statistic = ;
significant: ---Select--- Yes No
1 vs. 3: test statistic = ;
significant: ---Select--- Yes No