The company Nike is coming out with a special kind of shoe. The shoe is said to make athletes jump higher and run faster because of the lightweight material and bright colors. Other companies claim that the shoes are as average as any others on the market. To test the shoe, one hundred athletes of equal ability and speed are given the new Nike shoes and tested for a week in several skill areas. The experiment above is that:
1. poor because there is no control group
2. will test the hypothesis effectively
3. faulty in that the sample size is too small
4. well designed and will produce results for a testable conclusion