The phrase "undertook an experiment" is correct and usable in written English
You can use it when describing an action someone took, usually as part of a larger process. For example, "The professor undertook an experiment to prove his hypothesis."
Surrey Police undertook an experiment in which it reduced the number of detectives in a CID office and replaced them with more, lower-paid investigative assistants, with an outcome estimated to be a 30% increase in output and a 20% decrease in costs.
For those chartists whose response might be (and has been), "Let's see you do better," I would point out that beginning in 1990 the old pbs program Wall Street Week undertook an experiment in which ten Wall Streeters were asked to project the market for one-, three- and six-month periods.
Upon discovery of both duplicated and non-duplicated alleles in natural chimpanzees, we undertook an experiment to identify evidence of non-neutral selection at this locus.
Here we undertook an experiment to analyze the natural variation in genome-scale cold stress response regulatory networks in ten A. thaliana ecotypes at a single time point (3 hours) gene expression measurement.
There is no point in undertaking an experiment if you are already confident of the outcome.
Dr Ledbetter's Experiment Already a hit at the Dublin festival, this dark, gothic tale takes audiences into the mind of Dr Saul Ledbetter, who is undertaking an experiment in the anatomy theatre.
By a weird coincidence, 300 years earlier its land had been the home of the Diggers, a group of agrarian socialists undertaking an experiment in communal living, free from private property or commercial transactions.
With first semester just getting under way at most colleges, bringing with it the certain prospect of both academic and social pressure, The Times decided to undertake an experiment in quality control of the current offerings.
I remembered that the judge had looked catatonic at the height of the courtroom drama and thought that by making a show of sticking to procedure she had unwittingly undertaken an experiment in changing her path.
Gennady I. Lazarev, a prominent Vladivostok academic who is a proponent of the change, said in an interview that Russia should undertake an experiment, shifting the Far East closer to Moscow by one hour, waiting a year to allow people to adapt, then moving another hour closer.
In 1944, The Times reported that the New York State Department of Health would undertake an experiment by fluoridating the city water supply in Newburgh to a level of one part per million and comparing its dental health with that of Kingston, where the water would remain fluoride-free.
