Suppose that the city of rentville sets a price ceiling of $800 a month on all apartments, although the market equilibrium rent is $1,000. which of the following is least likely to occur? a) an increase in the quantity of existing apartments in rentville. b) a decrease in new apartments being built in rentville. c) a shortage of apartments in rentville. d) an excess of quantity demanded over quantity supplied in the market for apartments.

Penny poodle wanted to know which dog obedience training program was more effective: puppy pride, the approach she has been using for any years, or doggie do-right, a new approach. penny convinced 50 human companions of untrained dogs to participate in her study. the dogs and their humans were randomly assigned to complete the puppy pride or doggie do-right course. at the end of the training programs, all of the dogs were scored on their level of obedience on a standardized dog obedience checklist (scores could range from 10 to 100). the design of this study is: