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.Management Sciences
Category: Statistics Mcqs
Arithmetic mean is _________ by change of origin and scale of measurement?
0
A. Vary
B. Negative
C. Affected
D. Not affected
For a binomial distribution with n = 15 as p changes from. 50 toward. 05 the distribution will__________?
A. Become more positively skewed
B. Become more negatively skewed
C. Become symmetrical
D. All of the above.
The area under the normal distribution curve outside the interval of z=1 and z=3.09 is_____________?
A. None of the above
B. 0.1477
C. 0.1597
D. 0.3413
E. 0.4990
The headings for various columns are said to be ________________?
A. Portions of column
B. Vertical column
C. Column table
D. Column caption
To purchase the fruit, we use the _________ sampling?
A. Systematic
B. Cluster
C. Stratified
D. Judgment
Data classified by many _______ said to be Quantitative?
A. Characteristic
B. Categories
C. Affinities
D. Attributes
Which of the following is an assumption underlying the use of the t-distribution ?
A. The sample are drawn from a normally distributed population.
B. The variance of the population is known
C. All above
D. s (sample standard deviation) is an unbiased estimate of the population variance.
When testing for randomness, we can use_____________?
A. Sign test
B. None of these
C. Runs test
D. D Mann-Whitney U test
The number of accidents in a city during 2012 is____________?
A. Discrete variable
B. Continuous variable
C. Qualitative variable
D. Constant
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