๐Statistics MCQs
Statistics MCQs
490 MCQs1
The sampling error is the_____________?
ASame as the standard error of the mean
BDifference between the value of the sample mean and the value of the population mean
CError caused by selecting a bad sample
DStandard deviation multiplied by the sample size
2
A sample estimate is used to describe a characteristic of a_____________?
ASample
BData
CPopulation
DNone
3
A sample of 24 observations is taken from a population that has 150 elements. The sampling distribution of is___________?
AApproximately normal because is always approximately normally distributed
BApproximately normal because the sample size is large in comparsion to the population size
CApproximately normal because of the central limit theorem
DNormal if the population is normally distributed
4
Random samples of size 17 are from a population that has 200 elements, a mean of 36, and a standard deviation of 8. which of the following best describes the from of the sampling distribution of the sample mean for this situation ?
AApproximately normal because the sample size is small relative to the population size
BApproximately normal because of the central limit theorem
CExactly
DNone of these alternatives is correct
5
The difference between statistics and parameter is called:______________?
Aand (
BStandard
CSampling error
Dboth (
6
In w.o.r 2ฯx=_____________________?
A26/โnโN โ n/N โ 1
Bฯ/โnโN โ n/N โ 1
C26/โn N โ n/N โ 1
D26/โn
7
A list of sampling _________ is called sampling frame?
APoint
Bw.r.m
Cw.o.r
Dunit
8
To purchase the fruit, we use the _________ sampling?
ASystematic
BCluster
CStratified
DJudgment
9
Non-random sampling is also called___________________?
ABiased sampling
BNon-prob.sampling
CLess than sampling
DRepresentative sampling
10
A sampling distribution is the probability distribution for which one of the following___________?
AA sample
BA sample statistic
CA population
DA population parameter