Question 616509
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Hi
Note: 10 women
Using the Excel Data Analysis Tool:
Before: 164 175 135 165 192 180 175 205 210 208
  || m =180.9 and SD = 23.6
 After: 161 170 134 165 188 181 173 195 180 197
 || m = 174.4  and SD = 18.6

  t = {{{(180.9-174.4)/sqrt((23.6)^2/10 + (18.6^2)/10)=  6.5 /9.5 = highlight(.6841)}}}
 degrees of Freedom = (10+10)-2= 18 ... t =.6841, 5% significance level...
(Using t-test Table or t-test Calculator)
We can conclude that there is NO significant decrease in weight after the program