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Red wine contains flavonol, an antioxidant thought to have beneficial health effects. But to have an effect, the antioxidant must be absorbed into the blood. The article "Red Wine is a Poor Source of Bioavailable Flavonols in Men" (The Journal of Nutrition [2001]: 745-748) describes a study to investigate three sources of dietary flavonol-red wine, yellow onions, and black tea-to determine the effect of source on absorption. The article included the following statement: We recruited subjects via posters and local newspapers. To ensure that subjects could tolerate the alcohol in the wine, we only allowed men with a consumption of at least seven drinks per week to participate . . . Throughout the study, the subjects consumed a diet that was low in flavonols.
a. What are the three treatments in this experiment?
b. What is the response variable?
c. What are three extraneous variables that the researchers chose to control in the experiment?
A produce manager wants to estimate the mean size of coke bottle fills with 95 percent confidence. A preliminary sample of 12 bottles shows a sample standard deviation of 3 mil, and mean of 500.
Which of the following is a major difference between the binomial and the hypergeometric distributions?
Compute the autocorrelations of the income series for the first 10 time lags. Is the behavior of the autocorrelations consistent with your choice in part b?
The sums of squares were computed as SSW = 4773.3 and SSA = 591.2. Use the F test of ANOVA (assume α = 0.05) to decide whether or not there are any differences in true average lumen outputs between the three brands for this type of light bulb.
A financial analyst estimates that the probability that the economy will experience a recession in the next 12 months is 20%. She also believes that if the economy enters a recession
consider the three samples listed in the tablea 153b 06252c 31263obtain the sample mean and the sample standard
The auto parts department of an automotive dealership sends out an average of 8 special orders daily. The number of special orders is assumed to follow a Poisson distribution.
consider the formula used for any confidence interval and the elements included in that formula. what happens to the
Each car in a sample of seven cars was tested for? nitrogen-oxide emissions? (in grams per? mile), and the following results were obtained.
Many Americans have formed their mental images of the Old South form the movie of Margaret Mitchell's Gone with the Wind.
3. (SPSS) A criminal psychologist wants to examine the level of narcissistic personality traits between those who are diagnosed with antisocial personality disorder (ASPD) and those who do not qualify for ASPD. She administers a measure of nar..
Develop a chart that effectively compares the number of branded retail outlets in North America with the number in the United Kingdom.
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