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Quantative Analysis of Data

Quantitative Problem

Questions (1) explain in detail what each of them do. ? Descriptive Measures ? Probability ? Sampling Distributions ? Linear Regression ? Time Series Forecasting ? Index Numbers ? Decision Making (2) explain the advantages and disadvantages each of them have if they are attempted to be used by a finance departme


Answer THREE questions in total. ONE question from SECTION A and TWO questions from SECTION B. The solutions have to be typed not scanned. Question A1 The total body calcium (expressed as a percentage of the mean normal value) was determined for a random sample of 60 rheumatoid arthritis patients receiving prednisolone treat

Standard deviation of Armstrong Faber

Armstrong Faber produces a standard number-two pencil called Ultra-Lite. Since Chuck Armstong started Armstrong Faber, sales have grown steadily. With the increase in the price of wood products, however, Chuch has been forced to increase the price of the Ultra-Lite pencils. As a result, the demand for Ultra-lite has been fairly


71. Refer to the OECD data (Appendix L), which reports information on census, economic, and business data for 29 selected countries. a. Compute the mean, median, and mode for the variable employment. Which measure of central tendency seems to be most representative of the data? b. Compute the mean, median, and mode of the

Mean and Median etc.

70. Refer to the Baseball 2000 data (Appendix K), which reports information for the 30 Major League Baseball teams for the 2000 season. a. Determine the mean and the median team salary. Does one measure of central tendency seem better, or more representative, than the other? b. Determine the mean and the median attendance

Mean, Range, Standard Deviation, Variance and Skewness Problem Set

30. Determine the estimated mean of the following frequency distribution. Class Frequency 0 up to 5 2 5 up to 10 7 10 up to 15 12 15 up to 20 6 20 up to 25 3 93. Each person who applies for an assembly job at Carolina Furniture, Inc. is given a mechanical aptitude test. One part of the test involves assembling a dresser

Regression Analysis for Molding Company

I run a molding company and ran a regression analysis of monthly sales looking at monthly sales of prototype parts, travel expenses and advertising expenses. I want to see if any of these variables effect molding sales or help predict molding sales. N = 30. Any help with reading the results, main findings, what in the heck

Standard Deviation

#1) The sample standard deviation is a measure of: a.) center tendency b.) variability c.) relative position d.) all of the above #2) A random sample of 100 experimental unitsis one selected from the population in such a way that every different sample of size 100: a.) have different chances of selection or

Random Variables

Two different problems below: #1.) The following is the joint density for two random variables, X1 and X2: f(X1, X2): {3X1 for 0<=X2<=X1<=1 0 elsewhere Find P(0.2<=X2<=0.4) Which of the following answers: a.) 0.3750 b.) 0.2720 c.) 0.1800 d.) 0.3(1- X


Your boss has determined that on Wednesday, 5 random employees on the line have a chance to obatin a 25 dollar bonus if they produce more XT34's than 84 percent of other employees on the line. Randomly choose five workers from the sample and determine if they will get the bonus. Hint use a Z-score. employee# Number Produced o

Actual percentage is calculated.

In a magazine article, the most recent approval rating of the president is reported. The parcentage of citizens who favor the president, despits his recent invlovement in a scandal, is 68% with a margin of error of +/-4%. What does this mean?

Quantitative analysis

The solution converts this linear problem into excel using solver and shows the sensititive analysis. 10. Muir Manufacturing produces two popular grades of commercial carpeting among its many other products. In the coming production period, Muir needs to decide how many rolls of each grade should be produced in order to maxi

Operation Management

*See attachment for tables* Problem - 1: A storage company has identified a new location to build climate-controlled storage units and rent them. Storage units will be built in three sizes. These are 10x10 ft, 10x15 ft, and 10x20 ft. The monthly operating cost for each type of storage unit, and the monthly amount they wi

Calculating Overall mean and Inferential tests

I. Which measure of central tendency would you use to summarize the data below? 11.2, 13.9, 15.8, 16.6, 28.2, 12.1, 17.3 a. Arithmetic mean b. Mode c. Median d. Weighted mean II. Use the following scenario presented below to answer questions 1 to 2: January rainfall (mm) was recorded at four weather stations a

Elemantary Statistics

Suppose a wildlife service wishes to estimate, with 99% confidence, the mean number of days of hunting per hunter for all licensed hunters in the state during a given season, with a bound on the error of estimation equal to 2 hunting days. How many hunters must be included in the survey? Assume that the data collected in earli

General Statistics on Population

Problem: Please accept only if willing to explain. A POPULATION consists of these values: 2,3,6,8,11,18. a) Find Mean and Standard Deviant b) List all samples of size n=2 that are obtained without replacement. c)Find the population of all values of the mean of the values in a sample by finding mean of each sample from part b

Quartiles in Stem-and-Leaf Plots

Students collected data for a project for statistics class, and were asked to find the mean, median, mode, range, upper quartile, lower quartile, interquartile range, and standard deviation. Then, they were asked to plot the data in a stem-and-leaf plot, dot plot, histogram, and box-and-whisker plot. Explain how the students

Only for OTA 103997

Only for above listed OTA 1 set of information with a) solving for sd using conceptual formula and b)solving for sd using computational formula. Information: Mean:37/6=6.17 Median:31 Mode:27 From the Raw data which is: 14,16,16,16,20,20,20,21,23,23,24,24,26,27,27,27,27,30,31,31,32,33,34,34,35,35,35,37,38,38,39,42,46,48,49

Problem 61

61. According to Forrester Research Inc., approximately 19% of Internet users play games online. The following data show the number of unique users(in thousands) for the month of March for 10 game sites(The Wall Street Journal, April 17, 2000). Site -Unique User -9416 -3955 -

Statistics problems

Please use excel when necessary: The ages of the students in a statistics class ( this is asample of all statistics students at DM are: 35,28,42,40,27,35,52,40,35,38 a) What is the mean age of the students in the class? b) What is the median age of the students in the class? c) What is the mode? d) What is the range of

Economics, Quantitative Methods, Statistics

Brief: (a)Quadratic equation and total revenue maximisation with quantity produced. (b)Manager to choose between 2 inputs (elasticities of output for both given) to maximise ouput given predetermind budget. Question: Given that the managers's aim is to maximise output, subject to the constraint in the form of the total bud

STDEV Skewness and descriptive stats

You are a member of the Citizen Budget Committee for the school districts in Northwest Ohio. You have been given a data set (Appendix M in the text; "Schools" on your text CD) for analysis. Based on that data set, please help with the following questions (attached) note: EACH SCHOOL LISTED IS A SCHOL DISTRICT - first column


A unit for a telecommunications system is to be designed so as to have a minimum availability of 0.9994. The MTTR (mean time to repair) for the unit is estimated to be 24 hours. the unit is to consist of (n) effectively identical elements in parallel, from a reliability point of veiw. if the hazard rate of each of the elements i

Assets: Minimum Variance Portfolio; Yield Expected Return

Questions Assume that there are three assets available. A is a risk-free asset with that yields a rate of 8%. The other two assets, B and S are risky asset with the following attributes. Asset Expected Return Standard deviation A B 12% 15% S 20% 30% Correlation between assets B and S

3973/72- stats

Subject: sample mean/standard deviation/alpha Details: An insurance company asserts that the mean amount paid for personal injury claims resulting from automobile accidents is $18,500. An actuary wants to check the accuracy of this assertion and is allowed to randomly sample 36 cases involving personal injury. The sample mean

3845 - Statistics

Is there sufficient evidence to conclude that tuition cost for Public differs from that of Private? Test at the .05 percent level of significance. Be sure to provide a complete interpretation of the results.

Calcuate the range, variance & standard deviation for this data series

Universal package service,ltd., delivers sm parcels to business addresses in the greater boston area. to learn more about data description on the # of deliveries/wk for a sample of 10 customers: 3 3 4 2 3 3 23 3 Calcuate the range, variance & standard deviation for this data series. which measure does the best job of describin