Find portfolio weights of every stock
If you own 300 shares of Alaska Air at $42.88, 350 shares of Best Buy at $51.32, and 250 shares of Ford Motor at $8.51, find portfolio weights of every stock?
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How many women must be randomly chosen to determine the mean weight of women in one age group. We want 90% confidence that the sample mean is within 2.7 lb of the population mean, and the population standard deviation is known to be 22 lb.
Nichols contributes $10,000 cash and equipment having the book value of $3,500. Create entry to record Nichols's investment in partnership, suppose equipment has the fair value of $4,000.
Employ the given degree of confidence and sample data to construct a confidence interval for the population mean? Assume that the population has a normal distribution.
How much will you have in the account at the end of 38 years? Suppose that all interest received at end of year is reinvested next year.
A lot of 200 items is inspected by drawing the sample of size n without replacement. The lot is accepted only if all the items in sample are good. What is the required sample size to make sure that lots containing 2% unacceptable items would be re
The unknown radioactive element decays in non-radioactive substances. In 760 days radioactivity of the sample decreases by 62 percent.
The tank has 1740 L of pure water. The solution which has 0.07 kg of sugar per liter enters the tank at the rate 9 L/min. Determine amount of sugar in tank after t minutes.
An electronics repair shop has estimated that the time between failures for a particular electronic component part is exponentially distributed with a mean time between failures of 200 hours. Based on this information, the probability that a part
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