Confidence intervals for the proportion of invoices
Wade (Retail) looked at a random sample of 100 invoices from a large population. Eight of these contained an error. What are the 90% and 95% confidence intervals for the proportion of invoices with errors?
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Compute the change in Gibbs free energy for reaction of 2.6 kg of ocean (liquid water) with the atmosphere (nitrogen and oxygen) to form aqueous nitric acid (H+ and NO3-) under standard thermodynamic conditions at 298.15 K. The standard Gibbs Free
If the same results had been found from a sample of 20 pieces of equipment, what would be the 95% confidence interval? What would be the result if a Normal distribution had been used?
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Seattle, Inc., is contemplating a project that costs $180,000. Expectations are that annual cash revenues will be $70,000 and annual expenses (including depreciation) will total $30,000.
An alternative method used to determine the mass of the neutron relied on measuring the energy released in the neutron's capture in atomic hydrogen to form "heavy" hydrogen or deuterium to the reacion n + 1H ? 2H + 2.23 MeV.Using a measured value of
Chicago Co. is interested in purchasing a machine that would improve its operational efficiency. The cost is $200,000 with an estimated residual value of $20,000 and a useful life of eight years.
National Orthopedics Co. issued 9% bonds, dated January 1, with a face amount of $650,000 on January 1, 2013. The bonds mature on December 31, 2016 (4 years). For bonds of similar risk and maturity the market yield was 10%.
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