Sample size

R

Rahul Desai

New member
Joined
Dec 5, 2020
Messages
1
In a cross sectional study , i want to find out the prevalence of E. Coli urinary tract infection . The prevalence from past studies is 6.5%. Relative precision is at 20% and 95% significance level. Wat sud b the minimum SAMPLE SIZE??



N I also want to calculate the mean value of Hemoglobin in patients in a cross sectional study. The standard deviation from past literature is 200 ng per ml. The precision is set at 50 ng per ml and 95% significance level. Wat sud be the minimum SAMPLE SIZE?
 
Rahul Desai said:
In a cross sectional study , i want to find out the prevalence of E. Coli urinary tract infection . The prevalence from past studies is 6.5%. Relative precision is at 20% and 95% significance level. Wat sud b the minimum SAMPLE SIZE??

N I also want to calculate the mean value of Hemoglobin in patients in a cross sectional study. The standard deviation from past literature is 200 ng per ml. The precision is set at 50 ng per ml and 95% significance level. Wat sud be the minimum SAMPLE SIZE?
Click to expand...
Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:


Please share your work/thoughts about this problem.
 
You must log in or register to reply here.
Top