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A chain is suspended between points at the same elevation and spaced a distance of 60 ft apart. If it has a weight per unit length of 0.5 lb/ft and the sag is v 3 ft, determine the maximum tension in the chain.
Compute an exponentially smoothing forecast using an alpha value of .30. Compute an adjusted exponentially smoothed forecast (alpha = .30 and beta= .20).
The quality-control manager at a light bulb factory needs to determine whether the mean life of a large shipment of light bulbs is equal to 375 hours. The population standard deviation is 100 hours.
question 1 scores are obtained from the law school admission test lsat are normally distributed with a mean score of
the role of the sample mean x bar in a confidence interval estimate for the population mean is to determine thea.
What should ING's General Counsel do to minimize ING's expected costs?
a screeding test which measures the level of a prostate specic antigen psa is a commonly used tool for the detection of
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? Compute the value of the test statistic.
The possible responses to the question "How would you rate our quality of service?" with 1=excellent, 2=good, 3=fair, 4=poor, describes what type of variable?
A driver hired at the beginning of a year can be used to meet the current year's requirements and is paid full salary for the current year.
If you were an auditor and observed more than 30% with improper documentation, what would you conclude about the firms claim that only 20% suffered from improper documentation and why?
The time to complete a construction project is normally distributed with a mean of 60 weeks and a standard deviation of 4 weeks. What is the probability the project will take longer than 65 weeks?
Statistics practice questions answers in a correct order and if possible copy all the graphs in excel. How large a sample size (trading days) is needed to estimate the population mean number of shares traded per day to within 100 million with 95% co..
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