How does caffeine affect our bodies? In a matched pairs experiment, subjects pushed a button as quickly as they could after taking a caffeine pill and also after taking a placebo pill. The mean pushes per minute were 283 for the placebo and 311 for caffeine.
1. Is each of the boldface numbers a parameter or a statistic?
A. Both are parameters.
B. Both are statistics.
C. The first number (283) is a parameter and the second (311) is a statistic.
D. The first number (283) is a statistic and the second (311) is a parameter.