
Statistics Quiz
Quiz
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Computers
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University
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Practice Problem
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Medium
David Remon
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14 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of the following is a measure of central tendency?
Mean
Standard Deviation
Median
Skewness
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does variance measure in a dataset?
The average value
The spread of data around the mean
The symmetry of the data
The steepness of the data distribution
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does skewness indicate in a dataset?
Spread of data
Symmetry of the data distribution
Range of the data
Relationship between variables
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Inferential statistics involve which of the following?
Summarising data
Predicting characteristics of a population
Calculating the range
Creating scatter plots
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the null hypothesis (H₀) in hypothesis testing?
A statement that there is an effect or difference
A statement that there is no effect or difference
A method to summarise data
The range of values in a dataset
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the p-value in a hypothesis test is less than 0.05, what does this indicate?
Fail to reject the null hypothesis
Reject the null hypothesis
The test is invalid
The data is symmetrical
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a confidence interval represent?
The range of possible population means
The exact population mean
A measure of data spread
The central value in a dataset
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