(Answered) 1 independent samplesone of our researchers wishes to

Finance

1) Independent samples:

One of our researchers wishes to determine whether people with high blood pressure can reduce their systolic blood pressure by taking a new drug we have developed. The sample data is shown below, where x¯1 represents the mean blood pressure of the treatment group and x¯2 represents the mean for the control group. Use a significance level of 0.05 and the critical value method to test the claim that the diet reduces the blood pressure. We do not know the values of the population standard deviations. Please use the following critical value for this test: +or-2.378.

TREATMENT GROUP CONTROL GROUP

n1 85 n2 75

X-bar1 189.1 X-bar2 203.7

s1 38.7 s2 39.2

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