QMB Exam 3 Questions With 100%
Verified Answers
____________________________ is used to determine if two
categorical variables are independent of one another -
correct answer ✅The chi-square test of independence
Two variables are independent of one another if there is
_______________ between the two variables -
correct answer ✅no relationship
Step 1: Identify the null and alternative hypotheses
Step 2: Calculate the expected frequencies
Step 3: Calculate the chi-square test statistic,
Step 4: Determine the chi-square critical value,
Step 5: Compare the test statistic with the critical value
Step 6: State the conclusion -
Variation in __ explains variation in__, but not the reverse
(direction is only one way) -
correct answer ✅x ------> y
, QMB Exam 3 Questions With 100%
Verified Answers
___________ analysis is used to measure both the strength and
direction of a linear -
correct answer ✅Correlation
The _______________ indicates both the strength and direction of
the linear relationship between the independent and dependent
variables -
correct answer ✅correlation coefficient, r
The _______________________ refers to the correlation between
all values of two variables of interest in a population -
correct answer ✅population correlation coefficient (ρ)
__________________ is used to determine a straight line that best
fits a series of ordered pairs (x, y) using only one independent
variable -
correct answer ✅Simple regression analysis
______________ identifies the linear equation that best fits a set of
ordered pairs -
correct answer ✅The least squares method
Verified Answers
____________________________ is used to determine if two
categorical variables are independent of one another -
correct answer ✅The chi-square test of independence
Two variables are independent of one another if there is
_______________ between the two variables -
correct answer ✅no relationship
Step 1: Identify the null and alternative hypotheses
Step 2: Calculate the expected frequencies
Step 3: Calculate the chi-square test statistic,
Step 4: Determine the chi-square critical value,
Step 5: Compare the test statistic with the critical value
Step 6: State the conclusion -
Variation in __ explains variation in__, but not the reverse
(direction is only one way) -
correct answer ✅x ------> y
, QMB Exam 3 Questions With 100%
Verified Answers
___________ analysis is used to measure both the strength and
direction of a linear -
correct answer ✅Correlation
The _______________ indicates both the strength and direction of
the linear relationship between the independent and dependent
variables -
correct answer ✅correlation coefficient, r
The _______________________ refers to the correlation between
all values of two variables of interest in a population -
correct answer ✅population correlation coefficient (ρ)
__________________ is used to determine a straight line that best
fits a series of ordered pairs (x, y) using only one independent
variable -
correct answer ✅Simple regression analysis
______________ identifies the linear equation that best fits a set of
ordered pairs -
correct answer ✅The least squares method
