MULTIPLE CHOICE QUESTIONS

Q1. A decision to retain or reject null after conducting one sample t test depends on:

A) Expected result

B) What we would really like to see

C) Test value

D) P value

E) Measurement scale of the test variable

Q2. Following are few 95% confidence for odds ratio reported by various case control studies on the same topic. Which one of the following should be our most preferred 95% Confidence Interval?

A) 95%CI (1.5, 4.5)

B) 95%CI (2.5, 6.5)

C) 95%CI (3.5, 10.5)

D) 95%CI (2.5, 7.5)

Q3. Statements below are all correct except 2 please identify two incorrect statements. 2 answers are required.

Prevalence is expressed in terms of person-time at risk.

Risk ratio or relative risk is also the ratio of cumulative incidence (new cases/at-risk people at baseline.

Cohort and case control designs are both analytical observational designs

if P value for Shapiro wilk's test is less than 0.05 means according to this test normality assumption is not violated

when calculating a ratio measure generally exposed group or the numerator while non exposed are the denominator.