chapter 13 Flashcards
1
Q
When to use one-sample t test
A
- only one sample
- population mean in known
- sample SD is known
2
Q
A
3
Q
What is Degrees Of Freedom
A
the number of values that are free to vary when calculating the statistic
4
Q
A
5
Q
Confidence Interval Equation
A
CI = point estimate ± margin of error