A random sample of students was weighed after their first week of their first semester and weighed again after their final week of their first semester. Is there strong evidence that the students gained weight during their first semester? The summary statistics are as follows:
|
Initial Weight |
Terminal Weight |
Terminal Weight - Initial Weight |
Mean |
137.99 |
136.07 |
-1.91 |
StdDev |
24.610 |
24.371 |
2.128 |
Count |
68 |
68 |
68 |