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A science teacher claims that the mean scores on a science assessment test for fourth grade boys and girls are equal. The mean score for 63 randomly selected boys is 151 with a standard deviation of 36, and the mean score for 65 randomly selected girls is 149 with a standard deviation of 34. At α = 0.10, can you reject the teacher's claim? Assume the populations are normally distributed and the population variances are equal.
In a random sample of 1216 U.S. adults, 966 favor using mandatory testing to assess how well schools are educating students. In another random sample of 1202 U.S. adults taken 9 years ago, 893 favored using mandatory testing to assess how well schools are educating students. At α = 0.05, can you support the claim that the proportion of U.S. adults who favor mandatory testing to assess how well schools are educating students is more than it was 9 years ago?
the ski pro corporation which produces and sells to wholesalers a highly successful line of water skis has decided to
The firm says that it does this by statistically analyzing the words and phrases in the company's annual reports, news releases and public speeches by the company's senior executives.
Provide business advice to a new owner who is starting a new business. Discuss the different business structures. Dscuss advantanges and disadvantages. Discuss tax consquences for each.
Explain Samuelson's reasoning in your own words. - What does this tell us about Buffett or the efficient markets hypothesis?
Some U.S. companies have 1-year terms for directors. - A 2004 study found that the companies with 3-year terms have lower stock prices, controlling for other factors. What might explain this finding?
Amish Corporation makes wooden play sets. The firm pays annual rent of $350,000 per year and pays administrative salaries totaling $120,000 per year.
Billionaire investor Warren Buffett was once quoted in the Financial Post saying: "The reaction of weak management to weak operations is often weak accounting."
Michael's Mechanical sells 6,000 jettison machines annually. Each machine costs Michael's $2,000 to purchase, inventory carrying costs are 30 percent of the purchase price, and the cost of placing an order with its supplier is $120.
The company will incur $200,000 in annual fixed costs. The plan is to manufacture 10,000 RDSs per year and selling them at $10,000 per machine; the variable production costs are $8,000 per RDS. What is the annual operating cash flow from this proj..
Why did the u.s government help the bear sterns but the Lehman brothers go bankrupt, which caused a freeze in the financial markets, not only domestically but also internationally?
In the evaluation of alternative design configurations, an individual cost profile is developed for each. These individual profiles must be reviewed and evaluated in terms of some form of "equivalence." Briefly describe the steps you would follow ..
Provide NCC Technologies with a memo that provides your recommendations on the two proposals. Your memo should also include details of your analysis and briefly explain and justify your chosen methods and any assumptions made. Table format for pre..
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