Every year Money magazine publishes its list of top places to live. The following data represent a list of top places to live for a recent year, along with the median family income and median commute time.

(a) Does a positive association exist between income and commute time at the α = 0.10 level of significance?
(b) Draw a scatter diagram to support your conclusion.

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Family Income ($1000s) Commute Time City (minutes) Woodridge, Illinois Urbandale, Idaho 83 27.1 82 17.0 La Palma, California 86 26.9 Friendswood, Texas 90 26.0 Suwanee, Georgia 101 32.1 Somers, Connecticut 83 22.6