To investigate the maternal behavior of laboratory rats, we move the rat pup a fixed distance from the mother and record the time (in seconds) required for the mother to retrieve the pup to the nest. We run the study with 5-, 20-, and 35-day old pups. The data are given below for six pups per group.

5 days: 15 10 25 15 20 18 20 days: 30 15 20 25 23 20 35 days: 40 35 50 43 45 40 Run a one-way analysis of variance on the data.