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Anticonvulsant drugs may be effective because they encourage the effect of the neurotransmitter GABA (γ-aminobutyric acid). Calcium transport may also be involved. The present experiment randomly assigned 48 rats to eight experimental conditions. These eight conditions are the factor-level combinations of three factors, each at two levels. The factors are the anticonvulsant Trifluoperazine (brand name Stelazine) present or absent, the anticonvulsant Diazepam (brand name Valium) present or absent, and the calcium-binding protein calmodulin present or absent. The response is the amount of GABA released when brain tissues are treated with 33 mM K+ (data based on Table I of de Belleroche, Dick, and Wyrley-Birch 1982).
Analyze these data and report your findings. We are interested in whether the drugs affect the GABA release, by how much, and if the calmodulin changes the drug effects.
a random sample of 200 college students taken by this researcher showed that these adults spend an average of 13.75
1.an experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield.
Why might it not be a good idea to take the log of Hbath? Also generate a variable equal to the age of the house - how many valid observations do you have? Briefly explain why you will have exactly 6 fewer observations to use in estimating model
at parkview at any given time the probability that a randomly selected student is a female is 30. with this binomial
the average number of acres burned by forest and range fires in a large new mexico county is 4300 acres per year with a
Random sample with a normal distribution with a mean of 60,000 and standard deviation of 2300. What warranty should the company us if they want 96% of the tires to outlast the warranty?
Run a regression of sales against local income (only). Based on this regression, give an interval that you are 95% confident will contain your sales in a neighborhood with total income $200M. Do you think this regression is useful for planning you..
Graph one trace of the sample mean of a Poisson (α = 1)random variable. Calculate (using a central limit theorem approximation) and graph the corresponding 0.9 confidence interval estimate.
In the spring of 1987 Gary Hart, the leading Democratic presidential candidate, told the news media that he was more than willing to have his private life scrutinized carefully.
in a test of the drug lipitor 16.7 of the subjects treated with 10mg of atorvastatin experienced headaches. assume 60
You are estimating the install hours for an electronics upgrade based on the number of components affected. The upgrade for which you are estimating affects 25 components. Given the following equation, select the correct response from each pair.
Select three students from a class to receive ice cream by putting all the students' names in a hat ad picking out three names randomly. Is it a observational study, sample survey or an experiment ? Why?
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