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WorksheetsRevision RMM
Total questions: 70
Worksheet time: 48mins
Define a Type I error?
The failure to reject a false null hypothesis
Rejecting a true null hypothesis
The acceptance to reject a null hypothesis
Accepting a true null hypothesis
Which of the following represents the appropriate null & alternative hypotheses?
The mean height of women is greater than 64"
H₀: μ > 64"
Hₐ: μ ≠ 64"
H₀: μ < 64"
Hₐ: μ > 64"
H₀: p > 64"
Hₐ: p ≠ 64"
H₀: p = 64"
Hₐ: p > 64"
The sum of the data divided by the number of data points in the data set
Mean
Average
Population
Variance
H0: μ = k
H1: μ ≠ k
Left-tailed test
Two-tailed test
Right-tailed test
H0: μ = k
H1: μ > k
Left-tailed test
Right-tailed test
mark ALL that apply
This is a LEFT tail test
This is a RIGHT tail test
This has a significance level of 0.05
This has a critical value of 1.645
This has a critical value of -1.645
If the assumed hypothesis is tested for rejection considering it to be true is called?
Null Hypothesis
Statistical Hypothesis
Simple Hypothesis
Composite Hypothesis
If the null hypothesis is false then which of the following is accepted?
Null Hypothesis
Positive Hypothesis
Negative Hypothesis
Alternative Hypothesis.
The rejection probability of Null Hypothesis when it is true is called as?
Level of Confidence
Level of Significance
Level of Margin
Level of Rejection
A hypothesis is
a prediction about an experiment.
a statement of variables.
a phrase with scientific notation.
a testimonial of data.
When should you use the t-test? (select all that apply)
When you are testing a proportion/percentage of a population
When you are testing for a mean
When you are given the population standard deviation
When you are ONLY given the sample standard deviation
If you wish to test the claim that the mean of the population is 100, the appropriate alternate hypothesis is
x=100
μ=100
μ=100
μ>100
A hypothesis is never wrong.
True
False
A statement made about a population for testing purpose is called?
Statistic
Hypothesis
Level of Significance
Test-Statistic
Is a statement about the parameters of a model
A statistical hypothesis
Confidence Intervals
Normal distribution
Experimental design
A group of objects about which information is to be gained
Population
Sample
Average
Null hypothesis
The positive square root of the sample variance
Standard Deviation
Variance
Mean
Average
a chart is a ________ ___________ of data in which the data is represented by symbols such as bars in a bar chart.
computer software
graphical representation
complete set
incomplete representation
What is the main purpose of a broken-line graph?
to compare two things
to show trends over time
to have an independent variable
so you don't have to read words
Why is this graph misleading?
broken scale (doesn't start at 0)
uneven values on vertical axis
unequal spacing of lines
none of the above
Which graph is misleading?
graph 1
graph 2
graph 3
graph 2 and 3
Which table represents the data in the graph?
Which table represents the same data shown in the graph?
What type of graph is this?
Bar graph
Dot plot
Frequency
Pictograph
What type of graph is this?
Bar graph
Dot plot
Frequency
Pictograph
What is the Purposes of Research?
improves practice
increase in selfishness
adds to our knowledge
informs policy debates
Basic research is ...........
Practical and descriptive
Client-driven
Expands current knowledge
Advancement of technology
A group of research elements within which the research respondents will be taken from.
Population
Study population
Sample
Target population
It is the process of choosing samples from a population.
Sample
Population
Sampling
Each member of the population has a chance of being selected as a participant of a study.
Non-probability Sampling
Probability Sampling
What is the first stage of the research process?
Collect and analyze the data
Develop and implement the research plan
Report the findings
Define the research problem
Which of the following is a simple statement of researchers’ intention and a crucial element of a research study?
Research Hypothesis
Research Objective
Research Problem
Which among the following are the types of Probability Sampling?
Quota Sampling
Stratified Random Sampling
Cluster Sampling
Convenience Sampling
The null hypothesis in a t‑test of means of two independent samples would be :
x_1=x_2
\mu _1=\mu _2
\sigma _1=\sigma _2
All the above
What Z-value would be used to set up a confidence interval at the 95 percent confidence level when the sample size is 200?
.01
2.58
1.96
.05
Which of the following is the symbol for the population standard deviation?
s
\mu
\sigma
s^2
H0: μ = 3.0 is an example of:
the alternative hypothesis.
the critical value of the lower limit.
the null hypothesis.
none of the above.
Role of hypothesis is very important before _____.
Selection of problem
Data collection
Preparing research report
Drawn Conclusion
What is the purpose of research?
To increase understanding
To ensure ethical behaviour
To make use of questionnaires
To formulate a research proposal
Which is a form of secondary data?
Case studies
Government websites
Interviews
Observations
What is one advantage of using data from digital sources in research?
Equity of access
Ease of searching
Reliability of the data
Accuracy of the source
A closing paragraph that summarizes the main points of your research and is intended for the readers to know why your research should matter to them after they read it.
Introduction
Conclusion
Results
Thesis Statement
Which of the following research is used to check solutions for real-life problems on the basis of already existing theories?
Applied research
Action research
Ex-post facto research
Historical research
Research work can be published in
Magazines
Newspapers
Journals
Books
Question paper analysis is the example for ....?
Empirical Research
Diagnostic Research
Ethnographic Research
One Time Research
.........Used by most of the companies for trend analysis.
Ethnographic Research
Diagnostic Research
Longitudinal Research
One Time Research
In _____________ sampling the researcher selects every nth element from the sampling frame.
A. Cluster
B. Systematic
C. Simple random
Group members identify additional members to be included in the sample.
A. Snowball sampling
B. Quota sampling
C. Purposive sampling
_______ data has a logical order, but the differences between values are not constant
A. Interval
B. Nominal
C. Ordinal
In which of the following do both methods provide primary qualitative data?
Experiments and interviews
Questionnaires and sampling
Literature reviews and surveys
Observations and case studies
Which section of the research report explains what other people have done ?
Literature review
Results
Introduction
Abstract
Which section of the research report includes ethics ?
Introduction
Methodology
Results
Discussion
Which section of the report might have graphs in it ?
Introduction
Results
Abstract
Literature review
What best describes the marketing department?
Promotion & Advertising
Helping to sell products
Recording financial information
Conducting background business tasks
Which of the following questions is market research not likely to find an answer to?
Would consumers be likely to buy my product?
Which method of production should I use?
What price would consumers be likely to pay?
Which businesses will be the main competitors?
In market research, a sample is defined as:
a trial of the product so that consumers can test it at home
a free gift to the consumer
all of the potential consumers of a product
a group selected from all of the potential product consumers
Which of the following will be likely to make a firm's market research more accurate?
A smaller sample to save costs
Greater use of secondary rather than primary data
Testing a questionnaire on a small group of consumers
The best way for a Sales Department to present figures from this year to compare with last year
is to present it as a line graph
is to present it as a pictogram
is to present it as a pie chart
is to present it as a tally chart
