Two shooters, rodney and philip, practice at a shooting range. they fire 100 rounds each at separate targets. the targets are marked with circles and each bullet hitting a particular circle gets them a particular number of points. 50 rounds are selected at random. the sample mean scores of rodney and philip are 9 and 7, respectively. and, their variances are 0.25 and 0.36, respectively. the standard error of the difference between their mean scores is

You wish to buy a cabin in 15 years. today, the cabin costs $150,000. you believe the price of the cabin will inflate at 4% annually. you want to invest a single amount of money (lump sum) today and have the money grow to equal the future purchase price of the cabin 15 years from now. if you can earn 10% annually on your investments, how much do you need to invest now, in order to be able to purchase the cabin?

One of your new suppliers, kim, has been hearing rumors about your firm’s lack of capability to deliver high quality products and writes an email asking you to address the claims being made. in replying to her, you want to be sure that you are very clear and leave no room for misinterpretation. which of the following aspects of effective communication should you give the most attention? (a) making sure you understand kim’s areas of expertise. (b) supporting your reply with relevant data and facts. (c) establishing your credibility as an expert. (d) paying attention to implied communications.

Indicate whether each of the following companies is primarily a service, merchandise, or manufacturing business. if you are unfamiliar with the company, use the internet to locate the company's home page or use the finance web site of yahoo. 1. alcoa inc. 2. boeing 3. caterpillar 4. citigroup inc. 5. cvs 6. dow chemical company 7. ebay inc. 8. fedex 9. ford motor company 10. gap inc. 11. h& r block 12. hilton hospitality, inc. 13. procter & gamble 14. suntrust 15. walmart stores, inc.