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In: Statistics and Probability
the W's scientist at a pharmacy firm conducted an experiment of study the effectiveness of an...
the W's scientist at a pharmacy firm conducted an experiment of study the effectiveness of an herbal compound to treat common cold. individual was exposed to a cold virus, they was given herb or sugar solution. after several days they check each person condition, using a cold severity scale ranging from 0 to 5. no evidence of benfit of the compound
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orchestra answered 2 years agoRelated Solutions
1. A famous scientist, Mendel, conducted a genetic experiment with peas. On sample from this experiment...
1. A famous scientist, Mendel, conducted a genetic experiment
with peas. On sample from this experiment consisted of 428 green
peas and 152 yellow peas (There are no other colors)
a. how many peas are there altogether
b. calculate a 95% confidence interval for the percentage of
yellow peas. write your answer in english
c. find the margin of error
3. An experiment was conducted to evaluate the effectiveness of a treatment for tapeworm in the...
3. An experiment was conducted to evaluate the effectiveness of
a treatment for tapeworm in the stomachs of sheep. A random sample
of 24 worm-infected lambs of approximately the same age and health
was randomly divided into two groups. Twelve of the lambs were
injected with the drug and the remaining twelve were left
untreated. After 6 months, the lambs were slaughtered and the
following worm counts were recorded. Assume the counts are
approximately normally distributed.
Drug-treatedsheep 18, 43, 28,...
An experiment was conducted to evaluate the effectiveness of a treatment for tapeworm in the stomachs...
An experiment was conducted to evaluate the effectiveness of a
treatment for tapeworm in the stomachs of sheep. A random sample of
24 worm-infected lambs of approximately the same age and health was
randomly divided into two groups. Twelve of the lambs were injected
with the drug and the remaining twelve were left untreated. After 6
months, the lambs were slaughtered and the following worm counts
were recorded. Assume the counts are approximately normally
distributed.
Drug-treatedsheep 18 43 28 50...
An experiment was conducted to evaluate the effectiveness of a treatment for tapeworm in the stomachs...
An experiment was conducted to evaluate the effectiveness of a
treatment for tapeworm in the stomachs of sheep. A random sample of
24 worm-infected lambs of approximately the same age and health was
randomly divided into two groups. Twelve of the lambs were injected
with the drug and the remaining twelve were left untreated. After 6
months, the lambs were slaughtered and the following worm counts
were recorded. Assume the counts are approximately normally
distributed.
Drug-treated sheep 18, 43, 28,...
A famous scientist, Mendel, conducted a genetic experiment with peas. One sample from this experiment consisted...
A famous scientist, Mendel, conducted a genetic experiment with
peas. One sample
from this experiment consisted of 152 yellow peas out of 580
peas. Calculate a 95%
confidence interval for the percentage of yellow peas. Also,
find the estimation and
the margin of error.
A famous scientist, Mendel, conducted a genetic experiment with peas. One sample from this experiment consisted...
A famous scientist, Mendel, conducted a genetic experiment with
peas. One sample
from this experiment consisted of 152 yellow peas out of 580
peas. Calculate a 95%
confidence interval for the percentage of yellow peas. Also,
find the estimation and
the margin of error.
In 1954, an experiment was conducted to test the effectiveness of the Salk Vaccine as protection...
In 1954, an experiment was conducted to test the effectiveness
of the Salk Vaccine as protection against the devastating effects
of polio. Approximately 200,000 children were injected with an
ineffective salt solution, and 200,000 other children were injected
with the vaccine. The experiment was "double blind". Only 30 of the
200,000 vaccinated children later developed paralytic polio,
whereas 120 of the 200,000 injected with the salt solution later
developed paralytic polio.
a) Estimate the 95% confidence interval for the relative...
An experiment was conducted for better understanding of the effectiveness of a particular type of drug...
An experiment was conducted for better understanding of the
effectiveness of a particular type of drug for reducing bad
cholesterol (LDL) level. The purpose of the experiment was to
determine whether different dosages used have significant different
outcomes in average LDL reduction. Twenty subjects with LDL at
around 250 to 300 mg/dL had participated in the study and were
randomly divided into four groups. Each group was given a specific
level of dosage of the drug each day for one...
To study the effectiveness of treatments for insomnia, a health psychologist conducted a study with 12...
To study the effectiveness of treatments for insomnia, a health
psychologist conducted a study with 12 participants. Four
participants were instructed to count sheep (Sheep Condition), four
were told to concentrate on their breathing (Breathing Condition),
and four were not given any special instructions. Over the next few
days, measures were taken of how many minutes it took each
participant to fall asleep. The average times for the participants
in the Sheep Condition were 14, 28, 27, and 31; for...
To study the effectiveness of possible treatments for insomnia, a sleep researcher conducted a study with...
To study the effectiveness of possible treatments for
insomnia, a sleep researcher
conducted a study with 12 participants. Four participants were
instructed to count
sheep (the Sheep Condition), four were told to concentrate on their
breathing (the
Breathing Condition), and four were not given any special
instructions. Over the next
few days, measures were taken how long it took each participant to
fall asleep. The
average times for the participants in the Sheep Condition were 14,
28, 27, and 31;...
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