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Determine the minimum sample size required when you want to be 98% confident that the sample mean is within two units of the population mean. Assume a standard deviation of 4.82 in a normally distributed population.
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A random sample of 90 textbooks has a mean price of $100 and a standard deviation of $1450. Find a 92% confidence interval for the mean price of the textbooks. Then find a 99% confidence interval and compare your results ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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