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Address the issue of extrapolation and using regression equations to forecast far into the future. Explain the dangers of extrapolation from an accuracy standpoint and an ethical viewpoint.
an advertisement for cold-ex claims at 40 percent end-of-treatment clinical success rate for the treatment of flu. 11
what is the probability that someone in country a consumed more than 12 pounds of coffee in 20008?in 2008 the per
Which of the following does not explain a possible relationship between variables when the null hypothesis is rejected?
A test was conducted to find out whether gender of a spokesperson affected the likelihood that consumers would prefer a new product. A survey of consumers at trade show employing a female spokesperson determined that 70 out of 150 customers prefe..
Analyze the data using linear contrasts to make the following comparisons:
A scientist examined the effect of temperature and catalyst on the yield of a reaction. He ran the experiment at both 150° and 200°C with two types of catalyst.
Use Friedman test to find out whether there is evidence for significant difference between two population variance. Use .05 level of significance.
A car rental company has determined that the probability a car will need service work in any given month is 0.2. The company has 900 cars.
a multiple choice exam has 10 questions. each question has 4 possible answers of which one is correct. a student
Does the regression equation account for a significant portion of the variance in GPA? Use ∝ = .05 to evaluate the F - ratio.
a random sample of 70 needles was taken from a medical manufacturing facility and 24 were found to be defective.
In an analysis of variance summary table, if the mean square between = 35 and the mean square within = 28, then the null hypothesis of the groups having the same mean is?
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