Question: A study was conducted to determine whether lifestyle changes could replace medication in reducing blood pressure among hypertensives. The factors considered were a healthy diet

A study was conducted to determine whether lifestyle changes could replace medication in reducing blood pressure among hypertensives. The factors considered were a healthy diet with an exercise program, the typical dosage of medication for hypertension, and no intervention. The pretreatment body mass index

(BMI) was also calculated because it is known to affect blood pressure. The response considered in this study was change in blood pressure. The variable “group”

had the following levels.

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