jnu doubts

[aastha]

1: Suppose the critical region for a test statistics S in a given test of significance is given by S1<=S<=S2.Suppose that the probability (S<S1)=0.3 and prob.(S>S2)=0.45. what is the level of significance being used in carrying out this test ?
a:0.03   b:0.48     c:0.52    d:0.42

2.There are two villages A &B. An equal number of households,say200, live in A and B.Total agricultural land in each village is 200 hectares.the median land holdings is 0.5 hectares in A and 1 hectare in B.What can you say about inequality of land distribution in A and B ?
a:Inequality is more in A than B       b:inequality is less in A than B  c: inequality is same in A&B
d: any of the above can be true

3:consider a polity consisting of N individuals.A proportion ,p, of individuals are rich and rest are poor.Each of the N individual dies , leaving behind a child . Income mobility satisfies in this polity 2 rules: -if the parent is rich , the child turns out to be rich with probability a
                   -if the parent is poor , the child turns out to be poor with probability b
the proportion of children who are rich is
a: ap
b: a + (1-b)
c: p(a+1-b)
d: pa +(1-p)(1-b)

[ritu]

for 2nd i think any of the above is possible because median is not a measure of variation....ie..inequality...

[ritu]

for 3rd i think it shud u d....bt pls somone  cnfrm...

[ritu]

in a closed economy mpe halves but investment remains the same cetri paribus.in the new equlibrm,
a.savings double
b.income halves
c.savings is unchangd
d.cant claim any of above necessarily

[aastha]

@ ritu

for q 3 that i ve posted even i got d . . thanks for confirming :)

the question posted by u . . .: saving will remain unchanged . since in a closed economy I=S and I remains unchanged , , so ans  is c

[aditi5000]

For 2 the answer is A, median can be used to determine inequality - as far as i know, median land holding is used in research very frequently.
For soc A, half of popn has < 0.5 hect and other half has >0.5
for soc B, half of popn has <1 hect and other half has >1 hect
but popn is equal and so is the total land
so A is more unequal than B

[aditi5000]

http://www.fao.org/economic/the-statistics-division-ess/world-census-of-agriculture/additional-international-comparison-tables-including-gini-coefficients/other-international-comparison-tables-of-agricultural-census-data-explanatory-notes-and-comments/ar/