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A global economist hired by Microcomp, The US-based manufacturer estimates that the probability that the economic and political climate overseas and in Mexico will decline during the next five years is .40, the probability that it will remain approximately the same is .50, and the probability that it will improve is .10. Determine the best country to construct the new facility in and the expected value of perfect information.
Construct a 99% confidence interval for the proportion of customers favoring underground installation.
Determine the estimated population mean?
The diameter of small Nerf balls manufactured at a factory in China is expected to be approximately normally distributed with a mean of 5.2 inches and a standard deviation of .08 inch. Suppose a random sample of 20 balls is selected. Find the inte..
Ffind the probability that exactly 7 of the 10 consumers recognize the brand name. Also find the probability that the number who recognize the brand name is not 7.
To develop 3-month and 2-month moving average for the time series.The following data represents demand for company ABC's products for the last 10 months.
The New York Times reported (L.J> Flynn, Tax Surfing, The New York Times, March 25, 2002, p. C10) that the mean time to download the home page for the internal Revenue Service (IRS) , was 0.8 second. Suppose that the download time was normally di..
Define X as the number of people in the sample who are infected by the diease. What is the distribution of X and what are the parameter values of this distribution?
Test whether the mean weight is less than 10 pounds. Use P-value approach.
The local operations manager for the IRS must decide whether to hire 1, 2, or 3 temporary workers. He estimates that net revenues will vary with how well taxpayers comply with the new tax code.
Overall, the amount of work-hours involved in the festival preperation is normally distributed around 100 hours withn a standard deviation of 12 hours.
A survey found that 85% of women in a given city enjoy shopping online. Suppose you randomly selected 6 women from the city and ask them whether or not they enjoy shopping online. Find the probability that exactly 4 say they enjoy shopping online.
If 55% of the students were dissatisfied and 200 were selected randomly, what is the probability that at least half would be dissatisfied?
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