Question

A researcher would like to study the effects of grass-feeding on chickens' egg production. How could the researchermost accurately perform this study? Select all that apply.-He could feed all the chickens at a farm manufactured / store-bought feed for one month, recording their egg production. Then hecould let the chickens feed free range in the grass for one month, recording their egg production to determine whether there areany differences.-He could observe the number of eggs laid at two farms, one farm's chickens feed free range in the grass and the other feeds theirchickens manufactured/ store-bought feed.-He could let one chicken feed free range and count its egg production.-He could ask farmers if manufactured/store-bought feed or free-range feeding works best for egg production-He could count and compare how many eggs were sold at one farm that feeds their chickens free range in the grass and how manyeggs were sold at another farm that feeds their chickens manufacture/store-bought feed.

Answer 1

ef researcher would like to study the effects of grass-feeding on chickens' egg production.

He wants to know whether grass-feeding has any affect on egg production.

One possible way to perform this study is

He could observe the number of eggs laid at two farms, one farm's chickens feed free-range in the grass and the other feeds their chickens manufactured/ store-bought feed.

Another possible way to conduct the study would be

He could feed all the chickens at a farm manufactured / store-bought feed for one month, recording their egg production. Then he could let the chickens feed free-range in the grass for one month, recording their egg production to determine whether there are any differences.

The rest of the options don't seem appropriate.

For example:

The last option says to compare the number of eggs sold whereas the study is based on egg's production not on how many of them were sold, that's why it would not work.

Another option that says to study only one chicken is not appropriate because the sample size is too low and would result in incorrect conclusions.

Another option that says to ask other farmers is also not appropriate because the researcher has to perform the study himself and should not make any conclusion based on other's opinions.