Numerade

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This questions has multiple subparts. For your convenience, the description of the problem is provided with each component. A manufacturer of sprinkler systems used for fire protection in office buildings claims that the true average system-activation temperature is 130. A sample of n=9 systems, when tested, yields a sample average activation temperature of 131.08 F with a standard deviation 1.5 F. Suppose the distribution of system-activation temperature is normally distributed. Is there sufficient evidence to believe that average activation temperature of the sprinklers is different from manufacturer claims? Use 5% significance level. Show your work by answering following questions. 1. (4 points) State the parameter in context of the problem and set up the two competing hypotheses. 2. (2 points) What conditions are necessary for the test? Explain if they are satisfied.

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Markas Hasan, CFO for American National Air, is evaluating the possible takeover of a competitor air carrier. He found a Return on Investment, ROI, of 35% for the hostile take over. Markas should: Ignore the ROI because of theoretical problems with the method. Compare the ROI to the corporation's cost of capital and accept the project if greater than what it cost the company to borrow the funds. Recalculate the ROI because the rate is above the usual range of a standard ROI of 15 to 25%. Proceed with the takeover given the high profitability.

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Tutor, Incorporated (TI) provides instructional services to its customers. TI charges $200 per student. The Company expects to serve 500 students during the coming year. All of the Company's expenses are fixed. Total annual fixed costs are projected to be $60,000. If the estimated number of students decreases by 10%, the net income will Multiple Choice decrease by 25%. increase by 10%. decrease by 10%. increase by 25%.

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11 Multiple Choice 2 points Spanking is more likely to become abuse if: All of these. parents use corporal punishment to get rid of their own anger. it's not part of a parenting plan. parents are not flexible and use a variety of parenting tools. Previous

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Deducing the ions in a polyatomic ionic compound from its empirical... Complete the table below by writing the symbols for the cation and anion that make up each ionic compound. The first row has been completed for you. ionic compound NaCl Fe$_3$(PO$_4$)$_2$ MnCl$_4$ NH$_4$Br V(OH)$_2$ cation anion Na$^+$Cl$^-$

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Using the information below, determine what percentage of total GDP for this country consists of durable goods. If necessary, round your answer to the nearest tenth. Components of GDP on the Supply Side [in trillions of dollars] Durable goods 2.0 Nondurable goods 2.5 Services 11.4 Structures 2.1 Change in inventories 0.4 Total ?

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7 1 point Midway thru a 5-mile workout, a runner starts to sweat profusely. The sweat glands produc receptor effector control center stimulus Previous

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Regarding the characteristic, \"number of firms,\" what is the difference between perfect competition and oligopoly?

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Psychologists do not have authority to prescribe medication. ? True ? False

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The opportunity cost of 1 unit of cheese for England is:

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curtis l.