Answer:
1. In Fairbanks, Alaska, the month of July appears to be the outlier because it shows a significantly higher number of people moving compared to the other months.
2. Anchorage, Alaska appears to have a center of spring because the months of April and May show a peak in the number of people moving, indicating a concentration of migration during the spring months.
3. The outlier in Fairbanks, Alaska could negatively affect city planners as they plan to build services because it would skew their understanding of the typical migration pattern. This could lead to misallocation of resources as they may overestimate the demand for services during July, based on the outlier, and underestimate it during other months, affecting both the timing and distribution of resources.