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The following table describes the estimated green power sales by renewable energy in 2008:
Source Percentage (%)
Geothermal 2.8
Hydro 11.3
Landfill mass and biomass 28.1
Solar 0.2
Unreported 2.5
Wind 55.1
A) Develop a bar chart, pie chart, and Pareto Chart.
B) What conclusions can you reach about the sources of green power?
Using a 1% level of significance, can the hypothesis that the distributions for the student's scores are identical be accepted?
Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
A random sample of n = 16 scores is selected from a normal distribution with a mean of μ = 50 and standard deviation of σ = 10. a) What is the probability that the sample mean will have a value between 45 and 55?
The manager of a local gymnasium has determined that the length of time patron spend at the gymnasium is normal distributed with mean 80minutes and standard deviation 20 minutes. What is the patrons who spend more than 120 minutes at the gymnasium..
These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.
Assume that a study of 500 randomly selected school bus routes showed that 480 arrived on time. Is it "significant" for a school bus to arrive late?
Constructing histogram, Using a normal probability plot, Plotting residuals versus x values.
Utilize a test of the difference among proportions when answering these questions. Illustrate the research hypothesis.
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it. Is the manufacturer correct in its label claim? Explain.
Choose the proper conclusion regarding the claim that the population have different variances.
If he selects the three brands at random, what is the probability that he will select the following?
Evolutionary theories often, Emphasize that humans have adapted to their physical environment. One such theory hypothesis that:
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