Question

sami wants to compare the lifetime of two types of tires (grand touring all season and grand touring summer) produced in his company he assigned 30 cars to the first type in ramallah city nice and clean streets and assighned another 30 cars to the second type in tummum( many road bumps and some bad roads)is this good experiment?if no ,how can you improve this experiment?

Answer 1

NO, this is not a good experiment as the test conditions for both the tires is different so, the results can't be compared with each other.

since first type of tires is tested in ramallah city with nice and clean streets the wear and tear would be less

while the second type of tires is tested in tummum with many road bumps and some bad roads the wear and tear would be more leading to large impact in its results

The experiment can be improved by testing both types of car tires in same city so that road conditons are same resulting in results that can be compared without external factors being included.

P.S. (please upvote if you find the answer satisfactory)