226q: vitamin A deficiency is considered a public health problem if prevalence rate of night blindness in children between 6 months to 6 years is more ?
a. 0.01 %
b. 0.05 %
c. 0.1 %
d. 1.0 %
227q: the highest perecentages of PUFAs are present in ?
a. groundnut oil
b. soyabean oil
c. margarine
d. palm oil
In the decreasing order of content of PUFA :
1. SAFFLOWER OIL ,
2. SUNFLOWER OIL,
3. CORN OIL,
4. SOYABEAN OIL,
5. COTTON OIL,
6. MARGARINE OIL,
7. GROUNDNUT OIL,
8. PALM OIL,
9. BUTTER and
10. COCONUT OIL .
228q: a randomized trial comparing efficacy of two regimens showed that difference is statistically significant with P greater than 0.001 but in reality the two drugs do not differ in their efficacy . this is an example of :
a. type-I error ( alpha error )
b. type-II error ( beta error )
c. I-alpha
d. I-beta
229q: histogram is used to describe ?
a. quantitative data of a group of patients
b. qualitative data of a group of patients
c. data collected on nominated scale
d. data collected on ordinal scale
230q: a physician after examining a group of patients of a certain disease , classifies the condition of each one as NORMAL, MILD, MODERATE or SEVERE . which one of the following is the scale of measurement that is being adopted for classification of the disease condition ?
a. nominal
b. interval
c. ratio
d. ordinal
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