EBCOG P1 – 3 month May 2022 – Biostatistics Day 2 EMQ

A. 5%
B. 15%
C. 95%
D. 20%
E. 85%
F. 80%
G. 10%
H. 115%
I. 105%
J. 68%
K. 99%
L. <0.1%%
M. <1%
N. <5%
Lead in:
A new study showed the mean Hb level in high-risk pregnancy was 10g% and in Normal pregnancy was 11g%. The probability that this was due to chance was 0.05. And the probability of telling there is no difference when there is in reality is 0.15. the the sample size for this study was designed to with acceptable false positive rate of 5%.

1. What is the p value in this case?

2.What is the power in this case?

3.What is the maximum acceptable alpha error for any study?

4.what is the maximum acceptable beta error?

5.What is the minimum acceptable power for any study?

6.What is the minimum acceptable confidence in any study?

7.What is the minimum acceptable p value to reject a null hypothesis?

8.What is the p value below which the study is considered highly significant?

9.What is the p value below which the study is considered very highly significant?

10.What is the maximum acceptable alpha error commonly used to calculate sample size?"