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Construct the confidence interval for the population mean u. C= 0.90, x = 15.5, standard deviation = 6.0, and n= 45 A 90% confidence interval for u is?
1. Given the time series in Exercise 18.65, and using exponential smoothing with a 5 0.5, what would have been the forecast for 2009?
based on the number of voids a ferrite slab is classified as either high medium or low. historically 5 of the slabs
In a statistics lecture, students are asked whether or not they enjoyed doing statistics. Random sample of 50 students was taken and 30 of them said that they enjoyed doing statistics.
You are testing the null hypothesis that there is no linear relationship between two variables, X and Y. From your sample of 20, you determine that SSR = 60 and SSE = 40. Compute the correlation coefficient by first computing r squared and assuming..
The maturity risk premium is 0.40 percent on 2-year securities and increases by 0.07 percent for each additional year to maturity. Calculate the default risk premium on NikkiG's 10-year bonds. (Round your answer to 2 decimal places.)
In a bank drive-through, there is a single service window and room only for two cars to line-up to wait for service. The mean time between arrivals for drive through customers is 5 minutes. The mean time to complete a customer transaction is 3 min..
Q1.The life of cell batteries is normally distributed with a mean of 88.2 hours and a standard deviation of 15.5 hours. 93% of the batteries will last more than how many hours? (2 decimal places )
A soft drink bottling machine is set to dispense soft drink into containers labeled 16 ounces. While the actual quantities vary they are normally distributed with a mean of 16.1 ounces and a standard deviation of 0.015 ounces.
an economy consists of the three sectors agriculture energy and manufacturing. for each 1 worth of output the
Some Linux distributions are set up so that a root userid is not created during the installation process. In such cases, your regular password serves as the superuser password. Why would a distribution be set up in this way? What are the advantage..
Next, propose the overall manner in which you would apply statistical thinking strategy to improve the end result of the selected project.
Discuss the kinds of research that could be carried out as part of a marketing communications campaign, indicating when this research should be conducted.
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