Question

असत्य समूह विश्लेष असत्य समूह विश्लेषण को समझाइए

Answer 1

Answer:

a hospital based cross-sectional study, it is planned to estimate the mean D-dimer level among COVID-19 patients. From previous literature, the standard deviation was found to be 200 ng/mL. If the researchers want to estimate the mean with a 50 ng/mL precision and 95% significance level, what is the minimum sample size required?

Answer 2

Answer:

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