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Stats Review
Stats Review
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1
The probability that measures how likely it is that the data occurred by chance under the null hypothesis
test statistic
significance level
confidence level
p-value
2
A subset of the population of interest is called the
paramter
statistic
population
sample
3
The probability that a statistical estimate falls within a specified range of values.
test statistic
confidence level
significance level
p-value
4
A characteristic of a sample is called a
sample
statistic
population
parameter
5
What is the InterQuartile Range (IQR)?
The value below which 75% of the data falls
the difference between the max & the min in a data set
The value below which 25% of the data falls
the difference between Q3 & Q1
6
A discrete random variable
can assume any numeric value within a given range
can take on a finite or countable number of distinct values.
7
Which of these statistics is NOT one of the 5-number summary?
max
Q1
min
median
Q3
mean
8
The entire group of subjects of interest in study is called the
statistic
sample
population
parameter
9
What is the range?
The value below which 75% of the data falls
the difference between Q3 & Q1
The value below which 25% of the data falls
the difference between the max & the min in a data set
10
What is the mode?
the number that appears the most in a data set
the average value of a data set
the middle number in a data set
(min + max)/2
11
What is the 1st Quartile (Q1)?
The value below which 25% of the data falls
the difference between Q3 & Q1
The value below which 75% of the data falls
the difference between the max & the min in a data set
12
What is the median?
the number that appears the most in a data set
the average value of a data set
(min + max)/2
the middle number in a data set
13
What is the mean?
(min + max)/2
the average value of a data set
the number that appears the most in a data set
the middle number in a data set
14
A characteristic of a population is called a
parameter
statistic
population
sample
15
This # shows how closely your observed data match the dist. expected under the null hyp. It used to find the p-value.
p-value
test statistic
confidence level
significance level
16
A continuous random variable
can assume any numeric value within a given range
can take on a finite or countable number of distinct values.
17
What is the 3rd Quartile (Q3)?
The value below which 25% of the data falls
the difference between the max & the min in a data set
The value below which 75% of the data falls
the difference between Q3 & Q1
18
The threshold used to determine whether to reject the null hypothesis in hypothesis testing.
p-value
significance level
confidence level
test statistic
