Question Details

The hypothesis which is under test for possible rejection 



1. A population has a standard deviation of 16. If a sample of size 64 is selected from this population, what is the probability that the sample mean will be within 2 of the
population mean?
(i) 0.6826 (ii) 0.3413 (iii) -0.6826 (iv) -0.3413

2. If the variance of an estimator attains its Cramer-Rao lower bound for variance, then
the estimator is
(i)	Most efficient (ii) sufficient (iii) unbiased (iv) All the above
3. Estimator obtained by the method of MLE, are ----- than the estimator obtained by the
method of moments
(i) More efficient (ii) Less efficient
(iii) Equally efficient (iv) None of these

4. The hypothesis which is under test for possible rejection is
(i) Null hypothesis (ii) Alternate hypothesis
(iii) Simple hypothesis (iv) None of these

5. A hypothesis contrary to null hypothesis is,
(i) Null hypothesis (ii) Alternate hypothesis
(iii) Simple hypothesis (iv) None of these



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