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Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of products, such as coolants, insulating materials, and lubricants in electrical equipment. Disposal of items containing less than 50 parts per million (ppm) PCB is generally not regulated. A certain kind of small capacitor contains PCB with a mean of 47.7 ppm and a standard deviation of 8 ppm. The Environmental Protection Agency takes a random sample of 38 of these small capacitors, planning to regulate the disposal of such capacitors if the sample mean amount of PCB is 49 ppm or more. Find the probability that the disposal of such capacitors will be regulated. Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.
A normal distribution has a mean of µ = 70 with σ = 12. If one score is randomly selected from this distribution, what is the probability that the score will be less than X = 55?
Use an existing dataset to compute a factorial ANOVA. All SPSS output should be pasted into your document. The "Activity 5a.sav" file contains a dataset of a researcher interested in finding the best way to educate elementary age children in mathe..
A psychologist noted that people have more difficulty sleeping in a bright room than in a dark room. She measured whether the intensity of the light could.
Econometrics and Business Statistics (ECON634) - Does an increase in the total living area by one square meter increases the expected price of a house by more
How could legislation impact on operations within your organisation in relation to innovation, project management, and operational planning?
You decide to predict gasoline prices in different cities and towns in the U.S. for your term project. Your dependent variable is price of gasoline per gallon and your explanatory variables are per capita income
Presumably both of the writers considered evidence from studies about the same two categorical variables. Briefly describe the variables
Find the number of seats that each restaurant should have in order to have a probability greater than 95 % that it can serve all patrons who come to it.
Are the data sufficient to that the herb has a significant effect on memory? Use a two-tailed test with α = .05.
Five persons donate blood at the clinic on a particular day. Find the probability that at least one of the five does not have Rh+ blood.
Ways of Reducing Gender Bias in Sampling
What is the next test that is performed to determine specifically which of the four groups are different - what statistical test should be used?
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