ISOM 111 L11‚ Fall 2010 1 Homework 1 Solutions I. An insurance agency is examining the dollar amount of claims from clients who have homeowners insurance. For the 900 people who filed claims‚ the five-number summary of the amount is: ($8800‚ $8850‚ $8900‚ $9100‚ $9940). (a) Would the histogram displaying the data for the 900 claims be nearly bell-shaped? If so‚ explain how the summary indicates this. If not‚ determine if the data is skewed left or skewed right‚ and explain how the summary
Premium Standard deviation Arithmetic mean Median
Section One: Please provide your written answers to the following. 1. Do you consider yourself to be good with numbers‚ quantitative analysis‚ or scripting languages? Give an example. 2. What are you looking for in a job? 3. Using at least 10 words describe your attention to detail. 4. Looking at http://www.starmine.com/qa_test1.htm please find and document as many discrepancies (e.g.‚ logical inconsistencies‚ questionable calculations‚ grammar errors
Premium SQL Standard deviation Programming language
gaskets • Holding cost = $1.85 per gasket per year (= 0.21*(1-0.32)*$12.99) • Ordering cost = $20 per order Analysis EG151 (continued) • Normal distribution a 95% cycle-service level corresponds to a z = 1.645 • Standard deviation in weekly demand = ? • Standard deviation in
Premium Inventory Normal distribution Holding cost
Statistics Math 1342 Final Exam Review Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1) A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an ace or a heart. 17 7 3 4 A) B) C) D) 52 52 13 13 Answer: D 2) The events A and B are mutually exclusive. If P(A) = 0.7 and P(B) = 0.2‚ what is P(A or B)? A) 0.5 B) 0.9 C) 0.14 D)
Premium Normal distribution Standard deviation
Association (NCAA) reported that the mean number of hours spent per week coaching and recruiting by college football assistant coaches during the season was 70. A random sample of 50 assistant coaches showed the sample mean to be 68.6 hours‚ with a standard deviation of 8.2 hours. A. Using the sample data‚ construct a 99% confidence interval for the population mean. The confidence interval is as follows: 68.6- 2.58*8.2/ã50‚ 686+ 2.58*8.2/ã50 CI(65.6-71.5) B. Does the 99% confidence interval
Premium Arithmetic mean Sample size Standard deviation
CAPM Variance‚ standard deviation APR/EAR Capital Structure‚ financial‚ real assets HPR‚ PV‚ FV‚ Constant growth DDM‚ valuation‚ plowback
Premium Investment Finance Question
assets and a standard deviation of 1.5% of assets. The bank’s equity is 4% of the assets. What is the probability that the bank will have a positive equity at the end of the year? 2. A portfolio consists of 1‚000 shares of HSBC stock‚ and 2‚000 of Hang Seng stock. Current prices of HSBC and Hang Seng are 83 and 110 HKD respectively. Suppose that the percent1 age changes of HSBC and Hang Seng for the next ten days are normally distributed‚ with means 3% and 2%‚ and standard deviations 5% and 7% respectively
Free Standard deviation Normal distribution Variance
00 7.99 8.03 8.01 Construct a 95% confidence interval to estimate the true average length of the screws for the whole consignment. From a second large consignment‚ another 16 screws are selected at random and their mean and standard deviation found to be 7.992 mm and 0.01mm. Can you conclude at 5% level of significance that the first batch of screws has greater mean than the second batch? 2. A sample of 8 independent observations provides the following: 3.6 3.9
Premium Statistics Arithmetic mean Sample size
of total assets ($ billions) of these banks using the descriptive statistics feature. Study the output and describe what you can learn about the assets of these top 100 banks from the output. Top 100 Banks in the U.S Mean Standard Error Median Mode Standard Deviation Sample Variance Kurtosis Skewness Range Minimum Maximum Sum Count 76.5411 17.93374 21.97 13.01 179.3374 32161.9 22.2632 4.586275 1096.01 8.99 1105 7654.11 100 PART B During the 1990s‚ businesses were expected to show a lot
Premium Standard deviation European Union Variance
variable team salary and find the mean‚ median‚ and the standard deviation. b. Select the variable that refers to the age the stadium was built. (Hint: Subtract the year in which the stadium was built from the current year to find the stadium age and work with that variable.) Find the mean‚ median‚ and the standard deviation. c. Select the variable that refers to the seating capacity of the stadium. Find the mean‚ median‚ and the standard deviation. Solution The calculations for this problem appear
Premium Standard deviation Arithmetic mean Major League Baseball