t-test for two paired samples in Stata®

  Рет қаралды 80,613

StataCorp LLC

StataCorp LLC

Күн бұрын

Пікірлер: 9
@chiara2200
@chiara2200 3 жыл бұрын
This test is looking at the means. You can see that the bp_before mean= 156.45 and the bp_after mean = 151.36, showing that the treatment did work in reducing blood pressure on average. This average change is unlikely to be caused by chance, or there is a 0.001% (p=0.011) chance that the change in the means is by chance.
@franksantiago6478
@franksantiago6478 11 жыл бұрын
I understand that the difference is statistically significant, but does the fact that the p value is .0006 in the alternative: Ha: mean(diff) >0 mean that the difference in blood pressure was greater than zero AFTER treatment?
@lydiakyomaasiimwe2384
@lydiakyomaasiimwe2384 4 жыл бұрын
So did the BP increase or decrease after treatment? And what shows
@yaizalopez5966
@yaizalopez5966 10 ай бұрын
why is it used a t test for a sample size > 60 ?
@andreacangialosi9679
@andreacangialosi9679 4 жыл бұрын
What command should I use if I have to evaluate a t-test between more than 2 groups?
@Wilowsiu
@Wilowsiu 2 жыл бұрын
anova
@marsien10
@marsien10 Жыл бұрын
What is the conclusion please?
@vladpaul01
@vladpaul01 5 жыл бұрын
This is bullshit. The only thing you did was to read the variables and the outcomes. Go more in depth
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