Question

In Shimla, the temperature at noon was 12℃ above zero. If the temperature drops at a rate of 4℃ per hour until midnight, how much time would it take for the temperature to drop to 4℃? Also, Calculate the temperature at midnight.

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?