Question

If the elasticity doesn’t change between two variables, what should you do to measure this association?

Answer #1

Which of the following is a measure of association between two
variables?
a.
covariance
b.
correlation coefficient
c.
coefficient of determination
d.
options a), b) and c) are all correct
e.
options a), b) and c) are all incorrect

What is the appropriate statistic to identify the association
between two dichotomous variables, where the researcher is
interested in identifying the odds of an outcome occurring?

There is a positive association between alcohol consumption and
liver cancer. Explain the positive association between the two
variables. (2 points)
There is a negative (inverse) association between exercise and
cardiovascular disease. Explain the inverse association between the
two variables. (2 points)
Indicate each measure of association as Statistically
Significant (SS) or Not Statistically Significant (NSS). OR = odds
ratio; CI = confidence interval
____ OR = 1.91; 95% CI = 1.01-2.25 (1 point)
____ OR = 5.02; 95% CI...

Hours spent asleep and anxiety are negatively correlated.
Describe the association between these two variables (sleep and
anxiety) in words.

what is the purpose of measure of association tests
and when do we use them? what does the test tell us?

describe how you would conduct a study measuring the association
between sex and heart attack risk.
What your study design is (One sentence).
How you'll measure your exposure, with coding (One
sentence).
How you'll measure your outcome, with coding (One sentence).
The statistical test you will use (One sentence).
What variables you think will be confounders (One sentence).

(Dependent Variables): I want you to describe two different
dependent variables you would want to measure in your college
friendship study. Remember, these are your participant responses to
the independent variable, so use your IV as the stimulus that will
produce changes in your DVs. Think of at least two different
dependent variables!

What could you conclude if you were given the following measure
of association: Relative Risk = 0.89 (95%CI: 0.76- 1.04)?
a. A case-control study was used to estimate this relative risk
estimate.
b. The exposure is a risk factor.
c. The relative risk estimate is not statistically
significant.
d. There is a causal relationship between the exposure and the
outcome.

What do you learn about the relation between revenue-maximizing
prices and elasticity? (50words)

1. What is the relationship between price elasticity of demand
and revenues? How do you find the elasticity at any point on a
linear demand curve?
2. What is the marginal utility of a dollar? How does our
understanding of the rational consumer allow us to interpret demand
as a schedule of marginal benefits?
3. Solve the consumer’s problem when utility is logarithmic, so
that the marginal utility of an apple, say, is equal to 1/Qa, where
Qa is the...

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