Test 2 Practice
Quiz
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Other
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University
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Practice Problem
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Medium
Nazim Asani
Used 4+ times
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Enhance your content in a minute
19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is this symbol? (σ)
sigma: sample SD
sigma: population mean
sigma: sample mean
sigma: population SD
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is this symbol? (X̄)
data point in the population
data point in the sample
mean of the sample
mean of the population
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is this symbol? (μ)
mu: mean of the population
mu: mean of the sample
mu: mean of the population
mu: SD of the population
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In statistics we use alpha (α) for ...
Reliability (Cronbach's Alpha)
Type I Error
All of the above
probability cut off level
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The standard deviation is a measure of ____ and is an example of ____ type of stat.
central tendency/inferential
variability/descriptive
variability/inferential
central tendency/decriptive
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hypothesis testing is an example of using _____ to ____ something about the ____.
the sample/infer/the population
the sample/describe/the population
the population/describe/the sample
the population/describe/the sample
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you increase confidence intervals?
bigger standard deviation
smaller mean
decrease the confidence level from 99 to 95
increase the confidence level from 95 to 99
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