Question: BIRTH RATE ANALYSIS. It is said that first born children tend to develop language skills faster than their younger siblings. One possible explanation for this phenomenon is that first-borns have undivided attention from their parents. If this explanation is correct, then it is also reasonable that twins should show slower language development that since children and that triplets should be even slower. Davis (1937) found that exactly this result. The following hypothetical data demonstrate the relationship. The dependent variable is a measure of language skill at age 3 for each child. Do the data indicate any differences? Test with ????????