The Timer has started 10:00
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1)
A quantity obtained by applying certain rule or formula is known as
- A) Estimate
- B) Estimator
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2)
Criteria to check a point estimator to be good involves
- A) Consistency
- B) Unbiasedness
- C) Efficiency
- D) Above all
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3)
The F-distribution always ranges from:
- A) 0 to 1
- B) 0 to -8
- C) -8 to +8
- D) 0 to +8
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4)
Parameter is a ………quantity.
- A) Constant
- B) Variable
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5)
A failing student is passed by an examiner. It is an example of:
- A) Type I error
- B) Type II error
- C) No information regarding student exams
- D) Type III error
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6)
For two mutually exclusive events A and B, P (A) = 0.2 and P (B) = 0.4, then P(AUB) is:
- A) 0.8
- B) 0.2
- C) 0.6
- D) 0.5
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7)
An urn contains 4 red balls and 6 green balls. A sample of 4 balls is selected from the urn without replacement. It is the example of:
- A) Binomial distribution
- B) Hypergrometric distribution
- C) Poisson distribution
- D) Exponential distribution
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8)
If P(AnB) = 0.12 P (A) = 0.3, find P (B) where ‘A’ and ‘B’ are independent:
- A) 0.1
- B) 0.2
- C) 0.3
- D) 0.4
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9)
The mean deviation of the normal distribution is approximately:
- A) 7/8 of the S.D
- B) 4/5 of the S.D
- C) 3/4 of the S.D
- D) 1/2 of the S.D
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10)
We use the Poisson approximation to the binomial when:
- A) p is 0.01 or less & n is 10 or more
- B) p is 0.05 or less & n is 20 or more
- C) p is 0.04 or less & n is 15 or more
- D) p is 0.02 or less & n is 10 or more
