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 p...
bst 322 exam test verified solutions latest update
Written for
BST3209
All documents for this subject (1)
Seller
Follow
leonardkinyua
Content preview
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
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller leonardkinyua. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
