The city of Austin, Texas, recently introduced new procedures to streamline the review of commercial and residential building proposals. A random sample of proposals was obtained and classified by...

The city of Austin, Texas, recently introduced new procedures to streamline the review of commercial and residential building proposals. A random sample of proposals was obtained and classified by type of development and by the city office conducting the review. The length of the review process (in business days) for each proposal is given in the following table.

Many “snowbirds,” people who live in the Northeast during the summer and in Florida during the winter, ship their vehicles back and forth. However, automobile transportation costs are affected by a number of factors. In a study conducted by Corsia Logistics, a random sample of automobiles shipped from Boston to Miami was obtained for each combination of type of car (compact, midsize, full-size, SUV, pickup) and transport type (open, enclosed). The cost for each (in dollars) was recorded. Conduct an analysis of variance with a = 0.01 to test for interaction and factor effects. State your conclusions.