Data set for systolic blood pressure rates for: in this scenario, we will test for mean differences between two groups of workers to determine if there are significant differences between the systolic blood pressure rates for the two groups of workers.

factory workers

110,110,115,118,120,121,122,124,128,129

office workers

90,98,99,100,100,100,100,101,102,108

what are the n1 and n2 values for this data set? 10

1.) what are the means for group 1 and group 2? (Already figured out!)

2.) what is the variance and standard deviation for groups 1 and 2? (Already figured out!)

3.) what is our t-value and p-value?

FIND SE(D) and t using this formula: SE(D)=square root SD1^2/N1 + SD2^2/N2

t=G1(mean) - G2(mean)/SE(D)

use this to find t-value

degrees of freedom =18

p-value using website given is 0.0001

critical t using website given is 1.734

what is CI?

calculate the 95% CI for the mean differences using:

CI=(G1(mean)-G2(mean))+/-t(cv) (SEd)

4.) would you accept or reject the null hypothesis explain why?