# Question

The commercial fishing industry is concerned about the effect on fish of small amounts of pharmaceuticals in rivers and coastal waters where extensive fishing is done. In a recent study of the effects of the drug oxazepam (Science), researchers examined the behavior of fish (perch) exposed to various levels of the drug and measured, among other things, the changes in appetite observed in the exposed fish. Assume that the table below shows the average consumption (in grams) of zooplankton for fish exposed to three different concentrations of the drug (measured in parts per billion).

Test the hypothesis that average consumption for the populations represented here is the same for the three concentration levels. Use a significance level of 5%.

Test the hypothesis that average consumption for the populations represented here is the same for the three concentration levels. Use a significance level of 5%.

## Answer to relevant Questions

Goodwin and Gold is testing three automated routing procedures designed to reduce operational delays in the company’s main fabricating plant. In the test, 12 orders were randomly selected. Four of the orders were randomly .... From your work in Exercise 14, fill in the ANOVA table below: A random sample of size 10 from normal population A has a variance of 360. A second, independent, random sample of size 15 from normal population B has a variance of 240. Test a null hypothesis that the variances of the two ...Philadelphia’s Sports Injury Center conducted a study to determine the relative effectiveness of four alternative rehabilitation programs designed for patients recovering from severe knee injuries. One of the variables ...A random sample of size 25 from normal population A has a variance of 140. A random sample of size 8 from normal population B has a variance of 165. Test the hypothesis that the variance of population A is equal to the ...Post your question

0