I'm having an issue with this equation and I think I keep getting the wrong answer.

I'm having an issue with this equation and I think I keep getting the wrong answer.

Option 1 (Population mean)

 In taking a look at how physically active people are throughout their day, I am examining whether those serving active duty in the military walk more miles than those not in the military. Do military members walk more over the course of the day than the rest of the population? Over the course of 1 work week the following data was collected. Assume a random sample.

H0 : μ1 - μ2 = 0

HA : μ1 - μ2 > 0

Using the P-value approach, test this data at a .05 significance level.