A restaurant wants to test two different recipes of a restaurant meal. It offers the meal using one recipe to the customers who eat at the restaurant on Mondays, Wednesday, and Fridays, and it offers the meal using the second recipe to the customers who visit on Tuesdays, Thursdays, and Saturdays. The restaurant records the customers' reactions and repeat purchases over time. Which of the following is true? Select the correct answer below:   The study is an experiment. The controlled factor is the recipe used to cook the meal.   The research is an observational study   The study is an experiment. The controlled factor are the days of the week.   This is neither an observational study nor an experiment.

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A restaurant wants to test two different recipes of a restaurant meal. It offers the meal using one recipe to the customers who eat at the restaurant on Mondays, Wednesday, and Fridays, and it offers the meal using the second recipe to the customers who visit on Tuesdays, Thursdays, and Saturdays. The restaurant records the customers' reactions and repeat purchases over time. Which of the following is true?

Select the correct answer below:

 

The study is an experiment. The controlled factor is the recipe used to cook the meal.

 

The research is an observational study

 

The study is an experiment. The controlled factor are the days of the week.

 

This is neither an observational study nor an experiment.

 

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