8.Properties of a screening test includesa) Sensitivityb) Reliabilityc) Specificityd) Acceptabilitye) Predictive value

 9.Screening test a) Is used as a diagnosting methodb) Reliablec) is done in hospitals for patientsd)e) Is cost effective

10 A researcher collects data on a patients Age,Sex,Ethnicity,Weight & the presence or absence of metabolic syndrome, which of the following combinations are true,a) Weight – continuous variableb) Ethnicity – qualitative variablec) Prescence or absence of metabolic syndrome – quantitative variabled) Prescence or absence of metabolic syndrome – dependent variablee) Prescence or absence of metabolic syndrome – Ordinal variable

11 These are the scores of few students recorded in the term test.They are 56.3 , 69.5 , 73.4 , 895 . Here 895 is recorded by mistake instead of 89.5.how this will affect the following ;a) Mean increasesb) Mode increasesc) Median increasesd) Standard deviation increasese) The range increases

12 Presence of outliers affectsa) varianceb) standard errorc) correlation coefficientd) Standard deviatione) Inter quartile range

13 - T/F regarding presentation of data graphicallya) A compound bar chart can present 2 categorical variablesb) Inter quartile range is the best measurement of spread in a skewed distributionc) In a box and wisker plot the length of the box represents the range.d)e)

14 - Graph showing weight of students ( normal distribution graph of student weights.. the x axis weights are 45 50 55 60 65.. the y axis is no. of students..)a) 34% fall between 50 to 55kgb) 84% fall below 60kgc) 5% would fall below 45kgd) median is 55e) is a student of 62kg significantly different from the population

15) Research on Colonic cancer screening at an OPD of a hospital is to be conducted, sampling method which could be used are

a) cluster sampling b) stratified sampling c) simple random samplingd) multistage samplinge) systematic sampling