Question

Statistics Help Please:

I have a list of data (the % of reduction when exercising, % of reduction when medicated) 25 patients each. that I am told to do the following:

Estimate with 95% confidence the difference in mean percentage reduction in blood pressure between drugs and exercise programs.

I am confused on what I am supposed to find, do I use the t-Test of 2 means? Equal Variance? Unequal Variance? t-Estimate?

Any ideas???

Answer 1

@kropot72

Answer 2

so I believe that using the t-Test I got the following:

t-stat= 4.1382
p-value= .00014

and the values for the data are the following:
Exercise: mean=13.52, var=5.76, std dev=2.4
Drug: mean= 9.92, var=13.16, std dev= 3.6277

**Now the estimate I got (95%) with the interval is 3.6+/-1.7491

does this seem to be accurate data??
can I conclude that exercise is more effective than medication in reduction of hypertension??
how do I check to ensure that the required conditions of techniques used is satisfied??