A Research Project Is Conducted by Offering a Randomly Selected

Multiple Choice

A research project is conducted by offering a randomly selected 300 of the 500 local Toyota Prius owners a chance to use a new fuel additive for 6 months to see if their gas mileage improves. 225 of the 300 randomly selected Prius owners agree to the offer, 50 of those drop out of the project after 1 month, another 50 drop out after 2 months, and 25 more drop out after 3 months. The rest remain for the duration of the project. Using the intention to treat method, the results from how many of the Prius owners who were randomly selected should be included in the research project?

A) 100
B) 200
C) 225
D) 300