Several planners try to figure out what makes cities grow. The table presented in the assignment shows the results of surveys made in shrinking and growing cities. Is the mean perceived neighbourhood quality higher for growing cities?

a) A justification of the statistical test you selected

b) The statistical hypotheses (H₀ and H_a)

c) The calculations and the results of the statistical test

d) Your interpretation of the results of the statistical test.

Table 1: Perception of Neighbourhood Quality for Growing and Shrinking Cities Growing Shrinking 9.0 6.9 7.5 7.2 8.2 7.9 7.9 5.5 7.2 6.5 8.6 7.5 8.9 8.1 8.3 7.6