Formulas Flashcards
1
Q
Right tailed test Formula
A
_
x = h + (Za • o/√n)
2
Q
Z value Formula
A
_
z = x - h/ σ/√n
3
Q
Power of Beta Formula
A
1-B
4
Q
Beta(β)
A
To find β, find area of do not reject region(area to the left of z). To find area, find the solved z value on the z value chart.
Example:
Z-1.15 = 0.125 (Found in table)
β (Do not reject region) = 0.125
5
Q
DF(Degrees of Freedom) Equation
A
DF = n - 1
6
Q
Mean equation
A
_
x = £xi/n
7
Q
T - test equation
A
_
To = x - u / (s/√n)
