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بسيط إن شاء الله، تعال هلم وركز في العشر الصور التالية من كتاب
Biostatistics for Dummies
#Abo7aneen
بسيط إن شاء الله، تعال هلم وركز في العشر الصور التالية من كتاب
Biostatistics for Dummies
#Abo7aneen
🤔Ur research question: Is there significant difference btw mean BP readings following anti-HTN Rx compared to placebo?
🤔Is there significant difference btw mean BP readings among ≥3 groups (e.g., CCB, ACEI, and placebo)?
🤔Is there significant improvement in BP reading before and after Tx?
🤔Is there a significant difference btw two groups mortality rate (CCB vs ACEI to prevent CV mortality)?🤔
🤔Is there a significant correlation btw body wt and BP?
🤔Are pts using CCB for Tx of HTN developed CHF earlier than ACEIs🤔?
🤔I want to scale up power from 80% to say 90%, what can I do?🤔
🤔I want to scale up the significance level (Alpha level, P value) from 0.05 to say 0.001, what should I do?
🤔I have an unequal two groups, how can I consider this issue in my statistical analysis?
🤔We expecting some dropout/attrition from our study, how can we adjust for that upon calculation of sample size?
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