A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to perform all steps for hypothesis testing
or construct a 99% confidence interval for 1 - 2 where 1 and 2 represent the mean for the treatment group and the control group respectively.
			`
			Treatment	Control
			n1	85	n2	75
				189.1		203.7
			s1	38.7	s2	39.2