How to calculate sample size?

7 vues (au cours des 30 derniers jours)
Katjab
Katjab le 29 Déc 2017
Réponse apportée : Riccardo Monterubbianesi le 14 Mai 2020
Hi For a study I Need to determine the sample size. We will do several measurements and should not be significantly above the defined threshold of 3mm. A previous study showed a mean of 1.32 with the std of 0.98. Significance (Alpha) and power (1-beta) are as usual 0.05 & 0.8. Can I do it that way or am I completely wrong? -> sampsize= sampsizepwr('t',[1.32 0.98],3,0.80)

Connectez-vous pour répondre à cette question.

Réponses (1)

Riccardo Monterubbianesi
Riccardo Monterubbianesi le 14 Mai 2020
Hello, at the end, Is this formula correct?

Catégories

En savoir plus sur Classification dans Help Center et File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by