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.Management Sciences
Category: Sampling Mcqs
If the sampled population has a normal distribution, when is the sampling distribution of the sample mean X also a normal distribution ?
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A. Only when the sample size is at least 100.
B. Only when the sample size is smaller than 30
C. Always
D. Only when the sample size is at least 30.
In the sampling without replacement a sampling unit can be selected_______________?
A. Only Once
B. More than once
C. Less than once
D. None of these
A sample of 92 observations is taken from an infinite population. The sampling distribution of is approximately ?
A. Normal because is always approximately normally distributed
B. Normal because the sample size is small in comparison to the population size
C. Normal because of the central limit theorem
D. None of these alternatives is correct.
The process of selecting sample from the population is called_________________?
A. Sampling process
B. Sampling unit
C. Sampling
D. Size
The difference between statistics and parameter is called:______________?
A. Bias
B. Standard
C. Sampling error
D. both (a) and (b)
Major area of statistics today is concerned with drawing of conclusions from__________?
A. Samples
B. Primary
C. Two
D. Complete study
In w.o.r 2σx=_____________________?
A. 26/√n√N – n/N – 1
B. σ/√n√N – n/N – 1
C. 26/√n N – n/N – 1
D. 26/√n
Probability distribution of a statistics is called_________________?
A. Sampling
B. Parameter
C. Data
D. Sampling distribution
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