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Analysis Of Variance
(Single Best Answer) Question 1: A Cardiologist wants to study the effect of an anti-hypertensive drug. He notes down the initial systolic blood pressure (mmHg) of 50 patients and then administers the drug on them. After a weekâ??s treatment, he measures the systolic blood pressure again. Which of the following is the most appropriate statistical test of significance to test the statistical significance of the change in blood pressure ?
A) Paired t - test
B) Unpaired or independent t - test
C) Analysis of Variance
D) Chi-square test
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2: For testing the statistical significance of the difference in heights of school children among three socioeconomic groups, the most appropriate statistical test is ?
A) Students's 't' test
B) Chi-squared test
C) Paired 't' test
D) One way analysis of variance (one way ANOVA)
Answer (Select an option above to get the answer):
(Single Best Answer) Question 3: An investigator wants to study the association between maternal intake of iron supplements (Yes or No) and birth weights (in gms) of newborn babies. He collects relevant data from 100 pregnant women and their newborns. What statistical test of hypothesis would you advise for the investigator in this situation ?
A) Chi-square test
B) Unpaired or independent test
C) Analysis of variance
D) Paired t-test
Answer (Select an option above to get the answer):
(Single Best Answer) Question 4: An investigator wants to study the association between maternal intake of iron supplements (Yes or No) and incidence of low birth weight (<2500 or >= 2500 gms). He collects relevant data from 100 pregnant women as to the status of usage of iron supplements and the status of low birth weight in their newborns. The appropriate statistical test of hypothesis advised in this situation is ?
A) Paired t-test
B) Unpaired or independent t-test
C) Analysis of variance
D) Chi-Square test
Answer (Select an option above to get the answer):
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