5594505
Description
Quiz by Raisa Islam, updated more than 1 year ago
|
Created by Raisa Islam
over 8 years ago
|
|
Question 1
Question
What is a population?
Answer
-
A subset of a large group of people
-
A large group of observations (people, objects etc.) about which a researcher wants to draw conclusions
-
The number of people in a country
-
The number of people that comprise a demographic
Question 2
Question
What does descriptive statistics do?
Answer
-
Make leaps and conclusions about a population from sample data
-
Describe the data in a meaningful way
-
Explain formulae, the theory behind the statistics
-
Compress and condense raw data in the world into a workable size
Question 3
Question
What is σ²M
Answer
-
Standard variance of the population
-
Standard error of the mean
-
Standard deviation
-
Variance of sample
Question 4
Question
What are inferential statistics
Answer
-
A tool to predict the sample based on population data
-
A tool to draw inferences about a population from sample data
-
A way to compress and consolidate sample data
-
A way to estimate and make decisions about sample statistics
Question 5
Question
What are the two inferential procedures
Answer
-
Hypothesis testing and extrapolating
-
Estimation and interpolating
-
Estimation and hypothesis testing
-
Hypothesis testing and determining limitations
Question 6
Question
What is a confidence interval?
Answer
-
How likely a particular value or set of values is in the given data
-
An estimation of the confidence results are significant
-
An estimation of the area that encompasses a particular value
-
A tool to define a prediction, i.e. is it true or not
Question 7
Question
What is hypothesis testing?
Answer
-
How likely a particular value or set of values is in the given data
-
A way to test if the hypothesis can be applied to the entire population
-
A way to test if the hypothesis is valid
-
A tool to define a prediction regarding a statement about the population parameter, i.e. is it true or not
Question 8
Question
What is the sampling distribution?
Answer
-
A hypothetical distribution of values of a particular population parameter made by repeatedly sampling "n" times from a sample and calculating the value of the statistic for each sample
-
A hypothetical distribution of values of a particular sample statistic made by repeatedly sampling "n" times from a population and calculating the value of the population parameter for each sample
-
A hypothetical distribution of values of a particular sample statistic made by repeatedly sampling "n" times from a population and calculating the value of the statistic for each sample
Question 9
Question
The standard error of the mean only refers to the [blank_start]experiment[blank_end] [blank_start]that you are doing now[blank_end], i.e. the behaviour of the averages collected [blank_start]in the experiment[blank_end], while the variance is the noise in the [blank_start]population[blank_end].
Answer
-
experiment
-
population
-
sample
-
that you are doing now
-
parameter
-
statistic
-
that you did previously
-
in the experiment
-
for the population
-
in a previous experiment
-
populations
-
experiments
-
samples
-
sampling distributions
Question 10
Question
M is the unbiased estimate of μ
Answer
- True
- False
Question 11
Question
[blank_start]Variability[blank_end] tells you how much you can trust your [blank_start]experiment[blank_end]
Answer
-
Variability
-
experiment
Question 12
Question
As 'n' gets larger, you get a better estimate of the [blank_start]true population mean[blank_end].
Answer
-
true population mean
Question 13
Question
Decreasing standard deviation makes the σ²M more spread out, and pulls data away from the population mean.
Answer
- True
- False
Want to create your own Quizzes for free with GoConqr? Learn more.