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.Management Sciences
Category: Sampling Mcqs
Non-random sampling is also called___________________?
A. Biased sampling
B. Non-prob.sampling
C. Less than sampling
D. Representative sampling
Sampling error can reduced by __________________?
A. Non-random sampling
B. Increasing the population
C. Decreasing the sample size
D. Increasing the sample size
A sampling distribution is the probability distribution for which one of the following___________?
A. A sample
B. A sample statistic
C. A population
D. A population parameter
If in a sampling distribution of X the sample size is 25, what assumption must hold for the sampling distribution of X to be normal ?
A. Population distribution is normal
B. μ1 = μx
C. Population distribution is uniform
D. σx = σx /√n
The sampling error is the_____________?
A. Same as the standard error of the mean
B. Difference between the value of the sample mean and the value of the population mean
C. Error caused by selecting a bad sample
D. Standard deviation multiplied by the sample size
Which of the following is impossible in sampling ?
A. Destructive tests
B. Heterogeneous data
C. To make voters lists
D. None of these
The standard deviation of sampling distribution of a statistics is _________________?
A. Standard error of statistics
B. Sampling error of statistics
C. Sampling distribution of statistics
D. None of these
In probability sampling each sampling unit has some____________________?
A. Unknown
B. Large
C. Small
D. Know
If the sampled population has a normal distribution, when is the sampling distribution of the sample mean X also a normal distribution ?
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
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