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Question: Manufacturing and Product Development Silver bars used in trading on the bullion market are manufactured to certain height, width, and length specifications. In addition, there is variation in the silver content. Five randomly selected silver bars were carefully analyzed for silver content (in ounces). The sample variance was 65.5. Assume the distribution of silver content is normal, and find a 99% confidence interval for the population variance in silver content.
Although some financial institutions do not charge fees for using ATMs, many do. A recent study found the average fee charged by banks to process an ATM.
When the accountants for lose-a-digit Computer, Inc. had finished preparing their annual budget, they presented the final figures to the president, I.M. Smart.
Carry out a Z test using the five steps hypothesis testing with a two-tailed test at the .05 significance level, and make a drawing of the distributions involved.
Write the augmented matrix for this closed model of the economy according to the Closed Leontief model as described in Mathematical Applications for the Management, Life, and Social Sciences By Ronald J. Harshbarger, James J. Reynolds.
An operator is looking to put a kids' adventure playground in the centre of the island and these typically cater for people living up to 5km
Find the probability of accepting lots that are 4% nonconforming. What is the probability of rejecting a lot on the first sample?
Twenty-three faculty members volunteered. Each faculty member gave the survey to all the students in one course of their choosing. Would this sampling method be considered a cluster sample? Why or why not?
What is the response variable?- What is n, the number of cases?- What is p, the number of explanatory variables?- What are the explanatory variables?
estimating confidence interval for mean value of y dependent variable.consider the simple linear regression of y
given a population with a mean m of 75 and a standard deviation of 15 what is the z-score for the following values?a.
What is the p-value of a chi-square test of statistical significance for the relationship between Sex and Use Cell? Is the observed relationship statistically significant?
To obtain a 95% interval estimate for the mean student commuting time to the IUPUI campus with a margin of sampling error of MOE = 2 minutes, the minimum sample size should be n = _____. A pilot sample of students provided a planning value of σ^ =..
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