Font size
Worksheetsbiostatistics and research methodology
Total questions: 11
Worksheet time: 10mins
Sample size for Z-test
n<30
n>30
n=k
None of above
Parametric test used to test the significance between means of two samples which are independent
Pooled t-test
Paired t-test
One sample t-test
None of above
If the tabular value of F-ratio is less than calculated F-value
Null hypothesis rejected
Alternate hypothesis rejected
Alternate hypothesis accepted
Both a and c options
F-ratio for one way ANOVA is the ratio of
Mean of square between sample to mean of square within sample
Sum of square between sample to sum of square within sample
Mean of square of columns to mean of square of rows
None of above
Degree of freedom for residual variance in two way ANOVA is given by
c.r-1
(c-1)(r-1)
r-1
n-1
Signed rank test has characteristics such as
Follows binomial distribution
Has magnitude
Has positive and negative sign to ranks
All of the above
Mann whitney U-test is applicable for
Independent and unpaired data
Paired or matched data
Both of above
None of above
Kruskal Wallis test has degrees of freedom as
n-1
k-1
n-k
None of above
Chi square test tests
Goodness of fit
Signifocance of association between two attributes
Test of homogenity
All of the above
Friedman test is used when
There are more than 2 treatment groups with paired data
When distribution is not known and ANOVA cannot be applied
Both of above
None of above
Give rank to following data:
1, 2, 2, 9, 8, 7
