1. How do a paired-sample design and an independent-sample design differ? 2. A man measures his heart rate before using a treadmill and then after walking on a treadmill for 10 minutes on 7 separate...

1. How do a paired-sample design and an independent-sample design differ?

2. A man measures his heart rate before using a treadmill and then after walking on a treadmill for 10 minutes on 7 separate days.  His mean heart rate at baseline and 10 minutes after treadmill use is 85 and 93 beats per minute (bpm).  The mean change in bpm is 8 with a standard deviation of 6.

a. What test can we use to compare pre- and post- treadmill bpm?

b. Implement the test and report a two-tailed p value

c. Provide a 90% Confidence Interval for the mean change in heart rate after using the treadmill

d. What is your overall conclusion?