True or False
The correlation coefficient of 0.5 indicates a positive
association, while a correlation coefficient of -0.8 indicates a
negative association.
A researcher rejected the null hypothesis at a 1%
significance level, so the researcher will also reject the null
hypothesis at a significance level of 5%.
When a researcher calculated the 99% confidence
interval, the resulting level of confidence increased as compared
to the 95% interval.
When a researcher calculated the 99% confidence
interval, the resulting range of...
1. True or False: A correlation of 1.0 implies a perfect
positive correlation.
2. True or False: The fact that two variables are correlated
does not mean that one causes the other.
3. True or False: The value of the correlation (r) between X and
Y does not change if all values of X are multiplied by 100.
4. True or False: The Covariance between two variables has a
range from -1.0 to 1.0.
5. True or False: A correlation...
True or false? If there's a positive correlation between two events
A and B then there are two possible underlying stories behind this
correlation: B cause A; two, A causes B.
A value of r= .40 indicates that there is
a
a. Strong positive relationship between
x andy.
Strong negative relationship between x
andy.
Weak positive relationship between x andy.
Weak negative relationship between x andy.
__________20. Which of the following is nota property
of
r?
a. r
does not depend on the units of y or x.
b. r
is always between 0 and 1.
c. r
measures the strength of the linear relationship between x
and y.
d. r
does not depend on which of...
Identify the strength ("weak" "moderate" "strong") and direction
("positive" "negative") of the correlation coefficients.
Coefficient
Strength
Direction
+.09
–.87
+.59
true or false
(1) when an investment projecthas a positive net present value
(NPV), it has an internal rate of return (IRR) that is higher than
the discount used in the NPV calculations.
(2) most businesses undertake more than one investment project
at a time. this reduces the risk to equity investors in the
company. is this last statement true or false?
(3) When deutsche bank was told by the US government that it
would need to pay $14 billions...
true or false
(1) when an investment projecthas a positive net present value
(NPV), it has an internal rate of return (IRR) that is higher than
the discount used in the NPV calculations.
(2) most businesses undertake more than one investment project
at a time. this reduces the risk to equity investors in the
company. is this last statement true or false?
(3) When deutsche bank was told by the US government that it
would need to pay $14 billions...