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Given an initial distribution of p(x)= z exp(-zx), with z = 0.2 and an uncertainty term with a standard deviation of 2., compute the effect of adding the uncertainty on estimates for return periods of 10, 50, 100 and 500 years. Show your results for the probability densities in a table before adding uncertainty and after addition uncertainty. Similar to the worked example in class, you can simplify to only consider "diffusion" to one cell to either side of integer increments for the range from the 10-year to 500-year values.
The last sample showed a mean and standard deviation of 3.55 and 0.08 inches, respectively. Using α = 0.05, the appropriate decision is?
You are responsible for planning the parking needed for a new 256-unit apartment complex, and you're told to base the needs on the statistic "average number of vehicles per household is 1.7."
A trans-oceanic airline conducted a study to determine whether the average weight of baggage checked by a passenger differs significantly from 45 pounds.
A thorough examination reveals there is nothing wrong with the filling machine. From a statistical standpoint, was there a "type" error made? If yes, which type? Explain.
find the standardized test statistics t for a sample with n 12 sample mean 19.2 s 2.2 and a 0.01 if h0 u 18 round
discuss type i and type ii errors in relation to a control chart. what practical implication in terms of process
Standard deviation of 0.7 years. If you randomly purchase one item, what is the probability it will last longer than 13 years?
A sample of 350 lenses and found 5 lenses with surface defects. Formulate an appropriate test for the qualification of the polishing machine using an α = 0.05."
1 you are sending out 60 invitations to a party.each person can bring a guest if they wish. suppose its equal probable
What is your conclusion regarding null hypothesis?
Identify this F ratio. What does the F ratio tell you about the fit of the regression equation to the sample points? What does it suggest?
a researcher knows that the population mean among college students taking social conformity test is neutral100. scores
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