Consider the following statements.
Statement-I: Standard error of the mean is the standard deviation of the sampling distribution of mean.
Statement-II: Simple random sampling is non-probability sampling method.
Which of the following combination is correct?
A. Both I and II are true
B. Both I and II are false
C. I is true and II is false
D. I is false and II is true
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What is a cross-sectional design?
A. A comparison of two or more variables longitudinally
B. A design that is devised when the researcher is in a bad mood
C. The collection of data from more than one case at one moment in time
D. Research into one particular section of society, e.g., the middle classes
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The unit of analysis and interpretation of statistical unit can be
A. only rate
B. only ratio
C. only coefficient
D. All of these
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Which of the following is/are research methodology?
A. Naturalistic observation
B. Case study
C. Survey
D. All of the above
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What is the probability of an impossible event?
A. 0
B. 1
C. Not defined
D. Insufficient data
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Which of the following statement/s is/are true in context of ANOVA?
1. ANOVA is an acronym for "analysis of variance"
2. ANOVA is a parametric statistical hypothesis test to determine whether the means from two or more samples of data come from the same distribution or not.
3. ANOVA is used when one variable is numeric and one is categorical, such as numerical input variables and a classification target variable in a classification task.
4. ANOVA is a class of statistical tests that calculate the ratio between variances values, such as the variance from two different samples.
5. ANOVA tell us the explained and unexplained variance by a statistical test.
A. 1, 2 and 3
B. 2, 3 and 5
C. 1, 2, 3 and 4
D. all of the above
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Which one of the following methods seemsto be most appropriate in qualitative sampling?
A. Random digit dialling
B. Quota
C. Stratified random
D. Simple random
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Object of median is to
A. Fix a representative value
B. Establish a dividing line separating the higher from the lower values
C. Both A and B
D. Neither A nor B
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Identify from the following, the test statistic for which the value of numerator should always be greater than that of denominator.
A. 'Chi-square' value
B. 'F' value
C. 'Z' value
D. 't' value
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If the value of co-efficient of determination is 0.64, what is the value of co-efficient of correlation?
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To test the significant differences of two sets of related variables, we apply
A. F-test
B. T-test
C. Both A and B
D. None of these
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In a group of 100 CA students, 30 are male, 55 are studying for the Certificate Level and 6 of the male students are not studying for the Certificate Level. A student chosen at random is female. What is the probability that she is not studying for the Certificate Level?
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Which of the following are approaches of probability?
A. Classical approach
B. Relative frequency approach
C. Objective approach
D. Both A and B
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The predicted rate of response of the dependent variable to changes in the independent variable is called:
A. Slope
B. Intercept
C. Error
D. Regression equation
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Class
10 - 25
25 - 40
40 - 55
55 - 70
70 - 85
f
6
20
44
?
3
If the mode of the above distribution is 48.6, then the missing frequency will be
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. . . . . . . . asserts that there is not true difference in the sample and the population in the particular matter under consideration.
A. Null hypothesis
B. Alternate hypthesis
C. Both A and B
D. None of these
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Which of the following is not a source of secondary data?
A. Newspaper
B. Website
C. Observation
D. Journals and magazines
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Which empirical relation is correct?
A. Mean deviation = 4 3 (Standard deviation)
B. Mean deviation = 3 4 (Standard deviation)
C. Mean deviation = 5 4 (Standard deviation)
D. Mean deviation = 4 5 (Standard deviation)
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Which of the following sratement/s is/are true in context of categorization?
A. The main mathematical averages are arithmetic mean, geometric mean and harmonic mean
B. The averages of position are median, mode and partition values - quartiles, deciles, percentiles, etc
C. Both A and B
D. None of the above
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How many quartiles can be counted in a series?
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