MedicalStat

Means

No. of groups:
Decimals:

What is known?
Sample Size N Mean SD SE % CI
% PI
Values

What is known?
Sample Size N Mean SD SE % CI
% PI
Values



Description of Means

Group: N Mean SD SE % approx. CI
% exact CI
Null Hypothesis (H0) Z Value P Value T Value P Value DF

Mean

Group: N Mean SD SE % approx. CI
% exact CI
Null Hypothesis (H0) Z Value P Value T Value P Value DF

Mean


Description of Standard Deviations

Group: SD SD2 % Confidence Interval of SD
Null Hypothesis (H0) χ2 P DF
SD

Group: SD SD2 % Confidence Interval of SD
Null Hypothesis (H0) χ2 P DF
SD


Test

Group:    versus    Group:

Z-Test
Mean Difference (MD)
Mean1 - Mean2
MD SE of MD % CI of MD
Null Hypothesis (H0) Z-Value P-Value

MD

F-Test
Are variances equal? SD1 SD2 (SD1)2 (SD2)2 DF1 DF2 F1 Value
(lower)
F2 Value
(upper)
P1 Value
(lower)
P2 Value
(upper)
P Value
(total)



T-Test
Assuming
same variance
(SD1)2 = (SD2)2
Common SD Common SD2 DF SEMD % CI of MD
Null Hypothesis (H0) T Value P Value

MD
Assuming
different variance
(SD1)2 ≠ (SD2)2
SD1 SD2 (SD1)2 (SD2)2 DF SEMD % CI of MD
Null Hypothesis (H0) T Value P Value


MD


Weighted Average of all Means

Weighted Estimate WE SE % Confidence Interval
Null Hypothesis (H0) Z-Value P-Value

WE