Physics, asked by subashree2710, 12 days ago

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?

a) 62

b) 16

c) 31

d) 248

Answers

Answered by rumki940

0

Answer:

a)62

Explanation:

a hospital of the covid 19

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