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health effects of daily orange juice

This job records the type of research used:
true lab experiment
correlation design

A researcher at the Mr. Juicy Orance Juice Factory wanted to know the effects of drinking orange juice on an individual's health. He obtained the local doctor's records in his small town conducted a phone survey of the patients listed asking about orange juice consumption. He found that individuals who consumed just one glass of orange per day had fewer visits to the doctor's office.

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This is also a correlation design since the researcher is trying to determine ...

Solution Summary

A correlation design is exemplified.