BST 322/BST Final Exam 2023 with complete solution

· Question 1
out of 1 points 0



To determine the proportion of variability in one variable that can be accounted for or
explained by the variability of a second variable, you would calculate a correlation
coefficient, then take its square root.


Selected Answer: True
Answers:True
False


· Question 2
out of 1 points 1



When the researcher incorrectly rejects the null hypothesis, it is known as:

Selected Answer:
Type I error
Answers:Hypothesis error
Statistical significance

Type I error
Type II error


· Question 3
out of 1 points 1



Data which uses numbers to provide categories or labels as well as the
ordering of the categories are:

Selected Answer:
Ordinal
Answers:Nominal


Ordinal
Ratio
Interval


· Question 4
out of 1 points 1

, Multivariate statistics refers to the statistical analysis of the relationship between two
variables.


Selected Answer: False
Answers:True
False


· Question 5
out of 1 points 1



This is the measurement of dispersion equal to the square root of the
mathematical variance.

Selected Answer:
Standard deviation
Answers:Mean
Median

Standard deviation
Range


· Question 6
out of 1 points 1



Data which uses number values, has an equal distance between values, and
has a possible absolute zero is:

Selected Answer:
Ratio
Answers:Interval
Nominal
Ordinal

Ratio


· Question 7
out of 1 points 1



Generally, an ANOVA test is used when the means of 3 or more groups are compared.

, Selected Answer: True
Answers: True
False


· Question 8
out of 1 points 1



If a researcher accepts a null hypothesis when that hypothesis is actually
true, she has committed:

Selected Answer:
no error
Answers:a type I error
a type II error

no error
a causation


· Question 9
out of 1 points 1



A formal statement that there is a relationship between variables when tested by a
researcher is called:


Selected Answer:
Alternative hypothesis
Answers:Null hypothesis
Type I error
Type II error

Alternative hypothesis

· Question 10
out of 1 points 1



You are studying the effect of hypnosis on weight loss. You will measure
each patient's weight pre- and post-intervention. The most appropriate test
is:

Selected Answer:
Dependent groups t-test
Answers:One sample t-test