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Showing posts with label Statistics and Probability. Show all posts
Showing posts with label Statistics and Probability. Show all posts
Research Methods Quiz#3, MCQs
The Timer has started 10:00
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1)
When different interviewers are used in a pretest from those used in the posttest and this produces different results in the study, this is an example of a:
- A) History effect
- B) Mortality effect
- C) Instrumentation effect
- D) Cohort effect
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2)
Most threats to ________ are taken care of by the experiment’s design, while most threats to ________ need to be taken care of by the designer of the experiment.
- A) Internal validity, external validity
- B) External validity, internal validity
- C) Randomization, reliability
- D) Reliability, randomization
-
3)
In which of the following, the beginning and end are not clear. The interview can be picked up later?
- A) Survey Interview
- B) Field Interview
- C) Deception
- D) None of the given options
-
4)
On which of the following, Scientific knowledge mostly relies?
- A) Identification of events
- B) Logical understanding
- C) Prior knowledge
- D) All of the given options
-
5)
Which of the following is NOT the implication of Ordinal scale?
- A) Characteristics of nominal scale
- B) Rank the object
- C) Does not provide magnitude of object
- D) Provide rate
-
6)
Why it is important to avoid ambiguous terms while designing questions?
- A) Respondents may not understand the question.
- B) Respondents may operate with a different frame of reference.
- C) Respondents may think the question is less important.
- D) Respondents may have to ask for help when completing the questionnaire.
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7)
Which of the following is a double-barrelled question?
- A) How satisfied you are with the performance appraisal system?
- B) How satisfied you are with investment levels in new and existing software packages?
- C) How satisfied you are with the organisation's marketing strategy?
- D) How satisfied you are with the levels of customer satisfaction?
-
8)
The small scale trial run of a particular item is called ______________.
- A) Test Run
- B) Pilot test
- C) Post hoc test
- D) T test
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9)
In frequency tables total of columns and rows are called:
- A) Body of table
- B) Cell of table
- C) Area of table
- D) Marginals
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10)
Case study is empirical because;
- A) It investigates a contemporary phenomenon within its real life context.
- B) It is retrospective study in which the researcher follows the research process from effect to its cause.
- C) It is a study back in time.
- D) All of the given options
Research Methods Quiz#2, MCQs
The Timer has started 10:00
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1)
All of the following are unethical issues, EXCEPT;
- A) Invoicing irregularities
- B) Avoiding legal liability
- C) Misrepresenting results
- D) Seeking permission for entry
-
2)
The bivariate tables derived from trivariate table are called;
- A) Sub table
- B) Bivariates
- C) Partials
- D) Correlational tables
-
3)
Which of the following is linked with an abstract model of underlying relations or causal mechanism?
- A) Historical comparative research
- B) Social research
- C) Action research
- D) Experimental research
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4)
An important issue in index construction is to------------items.
- A) Reconstruct
- B) Codify
- C) Measure
- D) Weight
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5)
Which of the following major problem exist with non respondents in survey research?
- A) They tend to be alike in many ways.
- B) Data cannot be analyzed for only part of a sample.
- C) They cannot be found to determine if they are similar to respondents.
- D) They may have different opinions than respondents.
-
6)
Which one of the following methods offers the lowest degree of geographic flexibility?
- A) Mail survey
- B) Telephone interview
- C) Door-to-door personal interview
- D) Internet survey
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7)
A stratified sample in which the number of sampling units drawn from each stratum is in proportion to the population size of that stratum is called a:
- A) Balanced stratified sample
- B) Proportional stratified sample
- C) Cluster sampling
- D) Convenience sample
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8)
Assigning males the value of zero and females the value of one in a database to record the gender of the respondents is an example of:
- A) Coding
- B) Editing
- C) Verification
- D) Test tabulation
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9)
A researcher interested in a data matrix that displays the frequency of some combination of possible responses to multiple variables should construct a:
- A) Contingency table
- B) Regression equation
- C) Marginal table
- D) None of the given options
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10)
When initial subjects are selected randomly and additional subjects are obtained fromrecommendations of names from the initial subjects, this sampling technique is called:
- A) Judgment sample
- B) Snowball
- C) Convenience sample
- D) Cluster sample
Research Methods Quiz, MCQs
The Timer has started 10:00
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1)
The information gained by someone other than researcher conducting the study is called
- A) Primary data
- B) Reliable data
- C) Valid data
- D) Secondary data
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2)
Which of the following is not an example of historical comparative research?
- A) Social Forms
- B) Economic Forms
- C) Civil Wars
- D) Turnover
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3)
Which of the following is that element or set of elements considered for selection in some stage of sampling?
- A) Parameter
- B) Sampling Unit
- C) Observation Unit
- D) Statistic
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4)
If you are going on the street and suddenly a TV reporter starts taking your interview regarding any issue, which of the following sampling technique is used by the TV reporter?
- A) Purposive Sampling
- B) Snowball Sampling
- C) Convenience Sampling
- D) Quota Sampling
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5)
Sampling in qualitative research is similar to which type of sampling in quantitative research?
- A) Simple random sampling
- B) Systematic sampling
- C) Quota sampling
- D) Purposive sampling
-
6)
Which of the following is NOT a type of Non-random sampling?
- A) Cluster sampling
- B) Convenience sampling
- C) Quota sampling
- D) Purposive sampling
-
7)
Historical-Comparative researchers sometimes use;
- A) Time-series data
- B) Primary data
- C) Secondary data
- D) Analyzed data
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8)
Which of the following refers to the partials replicate or reproduce the same relationship that existed in the bivariate table before considering the control variable?
- A) Replication pattern
- B) Specification pattern
- C) Suppressor variable pattern
- D) Negative linear relationship
-
9)
Which of the following relates with an abstract model of underlying relations or causal mechanism?
- A) Analysis
- B) Synthesis
- C) Results
- D) Findings
-
10)
A single element or group of elements that is eligible for selection via the sampling process is called a:
- A) Sampling panel
- B) Sampling unit
- C) Sampling error
- D) Sampling quota
Statistics and Probability Quiz#4, MCQs
The Timer has started 10:00
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1)
The location of the critical region depends upon:
- A) Null hypothesis
- B) Alternative hypothesis
- C) Value of alpha
- D) Value of test-statistic
-
2)
How many percent of values are less then 4th deciles in a symmetric distribution.
- A) 14
- B) 24
- C) 4
- D) 40
-
3)
The combined distribution of more than two random variables is:
- A) Bivariate Distribution
- B) Marginal Distribution
- C) Joint Distribution
- D) Univariate Distribution
-
4)
The degrees of freedom for a T-test with sample size 14 is:
- A) 14
- B) 13
- C) 7
- D) 0
-
5)
Which of the falling is true for the binomial distribution b(x: n, p):
- A) Mean > Variance
- B) Mean < Variance
- C) Mean = Variance
- D) Mean = Standard Deviation
-
6)
What is m f in the formula of mode?
- A) first frequency
- B) last frequency
- C) middle frequency
- D) highest frequency
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7)
If a significance level of 1% is used rather than 5%, the null hypothesis is:
- A) More likely to be rejected
- B) Less likely to be rejected
- C) Just as likely to be rejected
- D) None of the above
-
8)
The variance of the chi-square distribution is:
- A) 2v
- B) v - 1
- C) v - 2
- D) v
-
9)
ANOVA was introduced by :
- A) Helmert
- B) Pearson
- C) R.A Fisher
- D) Francis
-
10)
The value of χ^2 can never be :
- A) Zero–
- B) Less than 1
- C) Greater than 1
- D) Negative
Statistics and Probability Quiz#3, MCQs
The Timer has started 10:00
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1)
If all the values fall on the same straight line and the line has a positive slope then what will be the value of the correlation coefficient ‘r’:
- A) 0 ≤ r ≤ 1
- B) r ≥ 0
- C) r = +1
- D) r=-1
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2)
If a curve has a longer tail to the right, it is called:
- A) Positively skewed
- B) Negatively skewed
- C) J-shaped
- D) Symmetric
-
3)
Which one of the following is not included in measures of central
- A) Quartile deviation
- B) Harmonic mean
- C) Geometric mean
- D) Arithmetic mean
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4)
Which of the following is not based on all the observations?
- A) Arithmetic Mean
- B) Geometric Mean
- C) Geometric Mean
- D) Mode
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5)
What is the Standard Deviation of 7, 7, 7, 7, 7, 7, 7
- A) 49
- B) 1
- C) 0
- D) 7
-
6)
In measures of relative dispersion unit of measurement is:
- A) Changed
- B) Vanish
- C) Does not changed
- D) Dependent
-
7)
The F-distribution always ranges from:
- A) 0 to 1
- B) 0 to -∞
- C) -∞ to +∞
- D) 0 to +∞
-
8)
In chi-square test of independence the degrees of freedom are:
- A) n - p
- B) n - p-1
- C) n - p- 2
- D) n – 2
-
9)
The Chi- Square distribution is continuous distribution ranging from:
- A) -∞ ≤ χ2≤ ∞
- B) -∞ ≤χ2 ≤1
- C) -∞ ≤χ2 ≤0
- D) 0 ≤ χ2≤ ∞
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10)
If ŷ is the predicted value for a given x-value and b is the y-intercept then the equation of a regression line for an independent variable x and a dependent variable y is:
- A) ŷ = mx + b, where m = slope
- B) x = ŷ + mb, where m = slope
- C) ŷ = x/m + b, where m = slope
- D) ŷ = x + mb, where m = slope
Statistics and Probability Quiz#2, MCQs
The Timer has started 10:00
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1)
A random sample of n=25 values gives sample mean 83. Can this sample be regarded as drawn from a normal population with μ= 80 and s= 7? In this question the alternative hypothesis will be:
- A) H1: μ = 80
- B) H1: μ ? 80
- C) H1: μ > 80
- D) H1: μ <80
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2)
The binomial distribution is negatively skewed when:
- A) p>q
- B) p
- C) p=q
- D) p=q=1/2
-
3)
When we draw the sample with replacement, the probability distribution to be used is:
- A) Binomial
- B) Hypergeometric
- C) Binomial & hypergeometric
- D) Poisson
-
4)
The probability of an event is always:
- A) less than 1
- B) between 0 and 1
- C) greater than 1
- D) between 1 and 2
-
5)
If the values of variables are increasing or decreasing in the same direction then such kind of correlation is referred as
- A) Zero Correlation
- B) Perfect Correlation
- C) Positive Correlation
- D) Negative Correlation
-
6)
Ms. Christian calculated a correlation coefficient of .75. Which of the following reflects the best interpretation of this?
- A) Weak negative.
- B) Strong negative.
- C) Weak positive.
- D) Strong positive.
-
7)
How many numbers of parameter(s) are in t-distribution?
- A) 0
- B) 1
- C) 2
- D) 3
-
8)
A standard deviation obtained from sampling distribution of sample statistics is known as
- A) Sampling Error
- B) Standard error
- C) Variance error
- D) SD
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9)
In a sample of 800 students in a university, 160, or 20%, are Business majors. Based on the above information, the school's paper reported that "20% of all the students at the university are Business majors." This report is an example of :
- A) A sample
- B) A population
- C) Statistical inference
- D) Descriptive statistics
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10)
A set that contains all possible outcomes of a system is known as
- A) Finite
- B) Infinite Set
- C) Universal
- D) None of these
Statistics and Probability Quiz, MCQs
The Timer has started 10:00
-
1)
A quantity obtained by applying certain rule or formula is known as
- A) Estimate
- B) Estimator
-
2)
Criteria to check a point estimator to be good involves
- A) Consistency
- B) Unbiasedness
- C) Efficiency
- D) Above all
-
3)
The F-distribution always ranges from:
- A) 0 to 1
- B) 0 to -8
- C) -8 to +8
- D) 0 to +8
-
4)
Parameter is a ………quantity.
- A) Constant
- B) Variable
-
5)
A failing student is passed by an examiner. It is an example of:
- A) Type I error
- B) Type II error
- C) No information regarding student exams
- D) Type III error
-
6)
For two mutually exclusive events A and B, P (A) = 0.2 and P (B) = 0.4, then P(AUB) is:
- A) 0.8
- B) 0.2
- C) 0.6
- D) 0.5
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7)
An urn contains 4 red balls and 6 green balls. A sample of 4 balls is selected from the urn without replacement. It is the example of:
- A) Binomial distribution
- B) Hypergrometric distribution
- C) Poisson distribution
- D) Exponential distribution
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8)
If P(AnB) = 0.12 P (A) = 0.3, find P (B) where ‘A’ and ‘B’ are independent:
- A) 0.1
- B) 0.2
- C) 0.3
- D) 0.4
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9)
The mean deviation of the normal distribution is approximately:
- A) 7/8 of the S.D
- B) 4/5 of the S.D
- C) 3/4 of the S.D
- D) 1/2 of the S.D
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10)
We use the Poisson approximation to the binomial when:
- A) p is 0.01 or less & n is 10 or more
- B) p is 0.05 or less & n is 20 or more
- C) p is 0.04 or less & n is 15 or more
- D) p is 0.02 or less & n is 10 or more