CHAPTER 9
The Single-
Estimating Population Standard Deviation from a Sample
Calculating Standard Error for the t Statistic
Using Standard Error to Calculate the t Statistic
The t Table and Degrees of Freedom
The Six Steps of the Single-
Calculating a Confidence Interval for a Single-
Calculating Effect Size for a Single-
Distributions of Mean Differences
The Six Steps of the Paired-
Calculating a Confidence Interval for a Paired-
Calculating Effect Size for a Paired-
9-
In many parts of the world, the winter holiday season is a time when family food traditions take center stage. Popular wisdom suggests that during this season, many Americans put on 5 to 7 pounds. But before-
The fact that researchers used two groups in their study—