BST 322 EXAM
TEST VERIFIED
SOLUTIONS
LATEST UPDATE
2023
When calculating a Pearson's correlation coefficient, it is necessary that both variables
have approximately normal distributions. - ANSWER True
The variable "Group assignment" is an example of what level of measurement? -
ANSWER Nominal
Statistics that allow for inferences to be made about a population from the study of a
sample are known as: - ANSWER Inferential
Which measure of variability is used most often in conjunction with the mean? -
ANSWER Standard deviation
Data that are categorical but can be rank-ordered in a meaningful way are called: -
ANSWER Ordinal
The variable "religion" is an example of what level of data? - ANSWER Nominal
The standard deviation is: - ANSWER The square root of the variance
In a study that examines the effect of a peer mentor on the emotional status of patients,
what is the dependent variable? - ANSWER Emotional status
, The variable "miles per hour" is an example of what level of data: - ANSWER Ratio
Information collected in a numerical form is called: - ANSWER Quantitative
Which measure of central tendency is at the highest point on a graph? - ANSWER
Mode
The measure of central tendency that is the point at which half the scores fall above and
half the scores fall below is the: - ANSWER Median
The mean and the mode are always the same for a dataset of over 10 values. -
ANSWER False
If the mean is to the left of the median, what is true? - ANSWER The distribution is
negatively skewed.
A variable with equal distances between score units which also has a true meaningful
zero is: - ANSWER Ratio
The third quartile is: - ANSWER the point below which 75% of the scores lie.
Which quartile has the same value as the median? - ANSWER 50%
Correlation coefficient tests allow you to determine if a cause and effect relationship is
present. - ANSWER False
A study in which a set of patients are tested for pain level before and after being given a
new pain medication would use which test? - ANSWER Dependent t-test
A range of values estimated to have a high probably of containing the population value
is called: - ANSWER Confidence interval
The area of a sampling distribution beyond which the null hypothesis is rejected is
known as the: - ANSWER Critical region
Statistical tests that make assumptions about the underlying distributions are called: -
ANSWER Parametric tests
If a researcher accepts a null hypothesis when that hypothesis is actually false, he has
committed: - ANSWER a type II error
If a researcher rejects a null hypothesis when that hypothesis is actually true, he has
committed: - ANSWER a type I error
TEST VERIFIED
SOLUTIONS
LATEST UPDATE
2023
When calculating a Pearson's correlation coefficient, it is necessary that both variables
have approximately normal distributions. - ANSWER True
The variable "Group assignment" is an example of what level of measurement? -
ANSWER Nominal
Statistics that allow for inferences to be made about a population from the study of a
sample are known as: - ANSWER Inferential
Which measure of variability is used most often in conjunction with the mean? -
ANSWER Standard deviation
Data that are categorical but can be rank-ordered in a meaningful way are called: -
ANSWER Ordinal
The variable "religion" is an example of what level of data? - ANSWER Nominal
The standard deviation is: - ANSWER The square root of the variance
In a study that examines the effect of a peer mentor on the emotional status of patients,
what is the dependent variable? - ANSWER Emotional status
, The variable "miles per hour" is an example of what level of data: - ANSWER Ratio
Information collected in a numerical form is called: - ANSWER Quantitative
Which measure of central tendency is at the highest point on a graph? - ANSWER
Mode
The measure of central tendency that is the point at which half the scores fall above and
half the scores fall below is the: - ANSWER Median
The mean and the mode are always the same for a dataset of over 10 values. -
ANSWER False
If the mean is to the left of the median, what is true? - ANSWER The distribution is
negatively skewed.
A variable with equal distances between score units which also has a true meaningful
zero is: - ANSWER Ratio
The third quartile is: - ANSWER the point below which 75% of the scores lie.
Which quartile has the same value as the median? - ANSWER 50%
Correlation coefficient tests allow you to determine if a cause and effect relationship is
present. - ANSWER False
A study in which a set of patients are tested for pain level before and after being given a
new pain medication would use which test? - ANSWER Dependent t-test
A range of values estimated to have a high probably of containing the population value
is called: - ANSWER Confidence interval
The area of a sampling distribution beyond which the null hypothesis is rejected is
known as the: - ANSWER Critical region
Statistical tests that make assumptions about the underlying distributions are called: -
ANSWER Parametric tests
If a researcher accepts a null hypothesis when that hypothesis is actually false, he has
committed: - ANSWER a type II error
If a researcher rejects a null hypothesis when that hypothesis is actually true, he has
committed: - ANSWER a type I error
