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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'STATISTICS' And exam conducted in the year 2015. And Question paper code was '066/2015'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
27.
28.
29.
80,
31.
82.
3.
84.
39.
36.
Define level of significance and power of test.
Write down the test statistic for testing equality of two distributions പള Kolmogoroy
Smirnov Test.
5 1 1 ⋅
how that the series ↥⊺⋅↕∙⋅−− +... 158 ളവ.
What is the probability that out of 10 deliveries in a hospital on a day 5 results in male
births?
(30 1 100)
PART II
Answer 9۹۹ carries 10 marks.
5
Find the characteristic function of Laplace distribution with pdf ട്ട =
In a sample of 1000 people in Maharashtra 540 are rice eaters and the rest are wheat eaters.
Can we assume that rice eaters and wheat eaters are equally popular in this state at 1% level
of significance?
+27
X and Y are two random variables having the joint density function, f(x,y): = 27 where x
and y assumes values 0, 1 and 2, Find the conditional digtribution of Y given X =x.
Find the maximum likelihood estimate for the parameter A of a Poisson distribution en the
basis of sample of size n. Also find its variance.
If X >1 is the critical region for testing 4 =2 against the alternative i=1, on the basis of a
single observation from a population, f(x,4)=2¢*, 0
Error and Type 11 error.
Explain the three basic principles of experimental design.
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