Assignment:
Confidence Interval for Estimating the Mean Weight Change Using the same paired sample data in Table 9-1, construct a 95% confidence interval estimate of μd .which is the mean of the "April-September" weight differences of college students in their freshman year.
Table Weight (kg) Measurements of Students in Their Freshman Year
|
April weight
|
66
|
52
|
68
|
69
|
71
|
|
September weight
|
67
|
53
|
64
|
71
|
70
|
|
Difference d = (April weight) - (September weight)
|
-1
|
-1
|
4
|
-2
|
1
|