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Export Financinga. Why would an exporter provide financing for an importer?b. Is there much risk in this activity? Explain
At the 0.05 level of significance, test whether the software package has reduced the average time it takes to complete deliveries.
What sample size would be needed for an error of ± 1.5 with 98 percent confidence? (Data are from a project by MBA student Wendy Blomquist.)
1. Let X., X2 , • • • , X11 be a random sample from a Poisson distribution with mean 0. Find the unbiased minimum variance estimator of 02.
a sports league is making up their season schedule. the league has 12 teams with eight teams from la and the rest from
What is the chance that the number who say "yes" in a properly drawn random sample of 500 will be smaller than 360?
a company that manufactures video cameras produces a basic model and a deluxe model. over the past year 30 of the
the same six testers rated the taste of two ice creams. taste ratings are not normally distributed so a t-test should
Change the last number from 257 to 61 and recalculate the confidence interval. Using the results, describe the effect of an outlier or extreme value on the confidence interval.
an mp3 player is loaded with 60 musical selections 24 rock tunes 21 jazz tunes and 15 blues tunes. the player is set on
Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the following questions. What is the likelihood the sample mean is at least $25.00?
a city has four exit ramps off an interstate highway. historically the percentages of exiting cars using exits 1
A customer wants delivery to be ensured between 10 am and 2 pm. Your truck leaves the factory at 4 am and time taken to reach the customer is normally distributed with an average of 8 hrs and a standard deviation of 1 hr.
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