I really need help on this, please help!!!

You are a health counselor and certified physical fitness worker for a local health club. You have been assigned to prove the beneficial results of your weight reduction program. You have pulled the files on 18 women, who all began your program six months ago and who are still participating. Below are the beginning and ending weights in pounds for these women. Assume α = .05 for this assignment.

Weights – Program Participants
Participant Start Weight End Weight
1) 163---144
2) 139---127
3) 155---126
4) 144---134
5) 158---169
6) 139---142
7) 149---129
8) 170---194
9) 153---147
10) 141---133
11) 169---176
12) 198---171
13) 159---146
14) 139---119
15) 143---149
16) 168---155
17) 149---158
18) 163---147

I really need help on this, please help!!!




I would recommend a paired (or dependent) samples t-test in this case. The Pearson correlation between the weights (for the two time periods) is 0.685.

The paired sample t statistic is 2.17 with an associated p-value of 0.045.