๐Statistics MCQs
Statistics MCQs
490 MCQs151
_________ is an estimate expressed by a single value?
AC.I.
BPoint estimator
CParameter
DPoint estimate
152
x=40 is estimator of _________________?
A(U)
B6
CUx
D6/โn
153
Sample variance S2 is unbiased estimator of population variance 26 because ________________?
AE(S2) = s2
BE(u) = X
CE(P) = P
DUx = u
154
if in a binomial probability distribution mean and variance are 6 and 2.4 respectively, then the parameters of this distribution are:____________________?
An = 10, p = 6/10
Bn = 50, p = 6/50
Cn = 10, p = 3/5
Dn = 10, p = 2/5
155
In a binomial distribution, n = 20 and p = 3/5, then variance of this distribution ______________?
A60
B12
C4.8
D0
156
Variance of binomial distribution is always:______________?
ALess than mean
BGreater than mean
CEqual to mean
DLess than equal to mean
157
Power of test is denoted by _______________?
Aฮฒ
Bฮฑ
C(1 โ ฮฑ )
D(1 โ ฮฒ)
158
The values that separate the region of rejection and acceptance region are called _______________?
ACritical value
BConfidence limits
CConfidence boundaries
DNone of these
159
The level of significance is denoted by _________________?
A1 โ โ
Bฮฒ
Cโ
D1 โ ฮฒ
160
If n = 400 and P=.69 then 90% C.I for P is _________________?
A652 and . 728
B.314 and .652
C.798 and .745
DNone of these