‘Lady tasting tea’ is a randomized experiment devised by Ronald
Fisher and reported in his book The Design of Experiments (1935).
The lady in question (Muriel Bristol) claimed that she can tell
whether the tea or the milk was added first to a cup. Fisher
proposed to give her eight cups, four of each variety, in random
order. One could then ask what the probability was for her getting
the specific number of cups she identified correct, but just by...
Design an experiment to find the relationship between the
electric force between the two spheres and the distance between
them. In the space below, describe your experiment, including:
What quantity did you vary?
What quantities did you hold constant?
What quantity did you measure?
Which quantities did you plot on your graph, and on which
axes?
Which Curve Fit gives the best fit for the data?
Describe your process and the relationship you found. In
particular, note where the data...
Design an experiment to find the relationship between the mass
on the spring and the period of oscillation. Include: What quantity
will you vary?
Which quantities will you hold constant?
What quantities will you measure?
What will you plot?
If the Black model is correct, what should be the relation
between the strike price on options on a futures contract (such as
on natural gas future) and the volatilities implied by the prices
of these options? What relation between strike and implied
volatility is typically observed in reality? Provide a brief
explanation of what can account for the observed strike-implied
volatility relation. Why might the “smile” “smirk” towards the
“call wing”? Why might it “smirk” towards the put wing?...
A. According to the Keynesian model:
There is no relation between full employment GDP and
inflation
If the economy is at less than full employment, there could be
an increase in GDP and an increase in inflation.
If the economy is at less than full employment, there could be
an increase in GDP without an increase in inflation.
If the economy is at full employment, there could be an increase
in GDP without an increase in inflation.
B. According to...
Using Pasteur's experiment as a model, describe the essential
features of good experimental design and identify those features in
Pasteur's experiment.
You design a microarray experiment to determine the difference
in gene expression patterns between normal and cancerous lung
tissue from humans. You label the cDNA derived from a lung tumor
with a red fluorescent dye and the cDNA derived from normal lung
tissue with a green fluorescent dye. You hybridize the cDNA to a
microarray chip in which each spot corresponds to a DNA sequence
from a different human gene.
a. What can you infer about a particular gene’s expression...
Lay out the design for two between-subjects experiments: a) an
experiment involving an experimental group and a control group, and
b) a factorial design with three independent variables that have
three, and two levels respectively.