Question

which is an example of an experiment?
(1 point)
a company asks its website users to rate its new features to navigate the site.
researchers working for a company test their new sneaker design to see if it helps athletes run faster.
a scientist watches a group of local birds to see what type of tree they prefer to make their nests in.
an ice cream company asks people to identify their top three ice cream flavors.

Explanation:

An experiment involves manipulating a variable to observe its effect. In the case of researchers testing a sneaker design to see if it helps athletes run faster, they are manipulating the sneaker design (the independent variable) and observing the effect on running speed (the dependent variable). The other options are either surveys (asking for opinions or ratings) or observational studies (watching without manipulation).

Answer:

Researchers working for a company test their new sneaker design to see if it helps athletes run faster.