An avionics company uses a new production method to manufacture aircraft altimeters. A simple random sample of 12 new altimeters results in various errors. The standard deviation of the errors is 47.5 ft. Use a 0.05 level of significance to test the claim that the new production method has errors with a standard deviation greater than 32.2 ft. State the initial and final conclusion.

Technology corp. is considering a $238,160 investment in a new marketing campaign that it anticipates will provide annual cash flows of $52,000 for the next five years. the firm has a 6% cost of capital. what should the analysis indicate to the firm's managers?

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d

Pear co.’s income statement for the year ended december 31, as prepared by pear’s controller, reported income before taxes of $125,000. the auditor questioned the following amounts that had been included in income before taxes: equity in earnings of cinn co. $ 40,000 dividends received from cinn 8,000 adjustments to profits of prior years for arithmetical errors in depreciation (35,000) pear owns 40% of cinn’s common stock, and no acquisition differentials are relevant. pear’s december 31 income statement should report income before taxes of