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B.Sc.II
Statistical Methods - II
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1.A null hypothesis is____________
2 points
Hypothesis of interest
Hypothesios of no difference
Hypothesis which is simple
Hypothesis which assigns value zero to the parameter
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2. Probability of rejecting H0 when it is true is equal to
2 points
Level of significance
probability of type I error
probability of type II error
Type I error
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3. Chi -square test is used to test
2 points
Hypothetical value of population variance
Independene of attributes
goodness of fit
All are true
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4. A hypothesis can be classified as _______
2 points
simple
composite
null
all of these
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5. Reliability of system always lie between
2 points
0 to 1
-1 to +1
0 to infinity
-infinity to infinity
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6. Student's t test is applicable in case of ____________ samples.
2 points
large
small
any
all of these
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7. Alternative hypothesis decides about ______ test.
2 points
one sided
two sided
both (i) & (ii)
none of these
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8. The degrees of freedom of test statistic for testing independence of two attributes each at two level is __________
2 points
1
2
3
4
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9. In series system , _____ components are in working position.
2 points
all
atleast one
two
all the above
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10.Which test is used to test ratio of two population variances?
2 points
F test
Z test
t test
none of these
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