Var (kY)= ____________?
Var (kY)= ____________?
A. k Var (Y)
B. k2 Var(Y)
C. Var(Y)
D. k2
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If bxy = -.8 by x = 1.2 then value of r is ________________?
If bxy = -.8 by x = 1.2 then value of r is ________________?A. √.96
B. √-.96
C. 0
D. None of theseIf the sampled population has a normal distribution, when is the sampling distribution of the sample mean X also a normal distribution ?
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.Cluster sampling is useful when sampling units are__________?
Cluster sampling is useful when sampling units are__________?A. Close another
B. Far a part
C. Mixed
D. None of theseBinomial distribution is used when n is ____________________?
Binomial distribution is used when n is ____________________?A. Large
B. Small
C. Zero
D. NormalFor t distribution, increasing the sample size, the affect will be on ?
For t distribution, increasing the sample size, the affect will be on ?A. Standard Error of the Means
B. The t-ratio
C. Degrees of Freedom
D. All AboveIn normal distribution, mean ______= Mode?
In normal distribution, mean ______= Mode?A. Quartile
B. Mean deviation
C. Median
D. S.D.