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A financial analyst is interested in estimating the average amount of a foreign loan by U.S. banks. The analyst believes that the amount of a loan may be different depending on the bank, or, more precisely, on the extent of the bank's involvement in foreign loans. The analyst obtains the following data on the percentage of profits of U.S. banks from loans to Mexico and proposes to use these data in the construction of stratum weights. The strata are the different banks: First Chicago, 33%; Manufacturers Hanover, 27%; Bankers Trust, 21%; Chemical Bank, 19%; Wells Fargo Bank, 19%; Citicorp, 16%; Mellon Bank, 16%; Chase Manhattan, 15%; Morgan Guarantee Trust, 9%.
Construct the Stratum weights for proportional allocation
Conduct a hypothesis test using H 0 : σ 2 = .009216 to see whether the sample data indicate that the variability in interest rates changed.
Develop a 99% confidence interval for the population proportion.
Assume the population standard deviations are not the same. At the .05 significance level, is there a difference in the mean waiting time?
A researcher has been measuring the time for pairs of 8 year olds who have just met each other to work together to solve a problem. Construct a distribution table for these data. include the colums and values for proportion and percentage.
With a confidence of 95%, what is the margin of error for the proportion of all carp that would incorporate the gene into their DNA?
Find a 95% confidence interval for the mean dielectric strength of the oil.
Compute a 5-month moving average forecast for June through January.
X is a continuous random variable uniformly distributed on [20, 45] that is, the end points c = 20 and d = 45.
Results were analyzed using one -way ANOVA and included SSTR =7 , 102 and SSE = 10 ,511. Are all 8 tapes equally appealing on average? Determine p value?
A new president at Big State University has made student satisfaction with the enrollment and registrations process one of her highest priorities.
In order to test the assumption of a Poisson distribution, a random sample of 150 ten-minute intervals was taken.
Compute the probability of exactly 0,1,2,3,4, and 5 arrivals per day.
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