Sensitivity and Specificity
We are interested in looking at the connection between a test and a disease to investigate the ability of the test to distinguish between sick and healthy.
We look at a sample of 50,000 people who have been tested for a particular disease. Of these, 100 have the disease. Of the 100 who have the disease, 95 are receiving positive test results. Of those who are healthy, there are 48902 people who get negative test results....
What does the population mean for your population (that is the
value population mean)? What is the mean of your sampling
distribution of sample means (that is the value sampdistrmean)?
According to the Central Limit Theorem, there is a formula relating
the population means and the mean of the sampling distribution of
sample means. What is that formula and how well did the outcomes of
your simulation match that formula? Explain and specifically
reference the formula.
NO3-(aq)+4H+(aq)+3e->NO(g)+2H2O(l)
E=0.96V
ClO2(g)+e->ClO2-(aq)
E=0.95V
Cu2+(aq)+2e->Cu(s)
E=0.34V
2H+(aq)+2e->H2(g)
E=0.00V
Pb2+(aq)+2e->Pb(s)
E=-0.13V
Fe2+(aq)+2e->Fe(s)
E=-0.45V
Use appropriate data to calculate E?cell for the
reaction.
3Cu(s)+2NO3-(aq)+8H+(aq)->3Cu2+(aq)+2NO(g)+4H2O(l)
Express your answer using two decimal
places.
MAC = 90 – E and Marginal Damages is MD = 30 + 2E,
where E is measured in tonnes. 19) Suppose the Chemical Company
owns the river. Begin by assuming there has not been any agreement.
The Fishery offers the Chemical Company $50 per tonne of abatement,
and the Chemical Company agrees. What will be resulting Net Social
Benefit (NSB) of the agreement?
Given:
Pb2+(aq)+2e–⇌Pb(s);E°=–0.13
Mg2+(aq)+2e–⇌Mg(s);E°=–2.38V
Ag+(aq)+e–⇌Ag(s);E°=0.80V
2H+(aq)+2e–⇌ H2(g);E°=0.00V
Under standard-state conditions, which of the following species
is the best oxidizing agent?
a. H
b.Mg2+
c. Ag+
d. Pb
e. Ag