There is constant discussion by companies and various philanthropic groups surrounding actions that are made for the "well-being" of society. What are two types of data you might use to measure this concept of the "well-being" of society?
The following sample was obtained from a population with unknown parameters: Scores 1,5,1,1 a) Compute the sample mean and standard deviation b) Compute the standard error of the mean
Why do you use graphs and charts to represent information? What level of data is money? Explain. What distinguishes a histogram from a bar chart? What level of data is a social security number?
See attached data set file. The data set for our course is a sample of a survey conducted on the population of the American Intellectual Union (AIU). It is available via the following link: DataSet with DataSet Key which contains the following nine sections of data that will be used throughout our course: (1) Gender (2) Ag
When is the mean the best measure of central tendency? When is the median the best measure of central tendency?
When would you use descriptive statistics rather than inferential statistics? Provide a specific scenario and explain your rationale.
The data set for our course is a sample of a survey conducted on the population of the American Intellectual Union (AIU). It is available via the following link: DataSet with DataSet Key which contains the following nine sections of data that will be used throughout our course: (1) Gender (2) Age (3) Department (4) Position
1. NBC TV news, in a segment on the price of gasoline, reported last evening that the mean price nationwide is $1.50 per gallon for self-serve regular unleaded. A random sample of 35 stations in the Milwaukee, WI, area revealed that the mean price was $1.52 per gallon and that the standard deviation was $0.05 per gallon. At the
See attached file. Assume you are researching about housing in a neighborhood encompassed by 5 townships in the attached Real Estate Data Set (Excel). Evaluate if the distance from center of town the homes are located creates a positive, negative or neutral change in the price of the home. Data analysis using descriptive
Using excel The following frequency distribution reports the electricity cost for a sample of 50 two bedroom apartments in Albuquerque, New Mexico during the month of May last year. Electricity Cost Frequency $ 80 up to $100 3 100 up to 120 8 120 up to 140 12 140 up to 160 16
A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position. The standard deviation of the sample was 6.2 weeks. Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks?
See attached Minitab sheet for use with one of the questions. Please us either Excel or Minitab to answer the questions, where necessary 1. The following information regarding the top eight Fortune 500 companies was presented in a recent issue of Fortune Magazine. Sales Sales Profits Profits Company
1. Download time series of daily and monthly prices for IBM for 1963-2009. 2. Compute the sample mean, median, variance, skewness, kurtosis, min, and max for continuously compounded, i) daily and ii) monthly returns. Compare the same for simple returns. a. Are there any differences in skewness of daily and monthly returns?
Instruction: ? a) Plot the data ? b) Discuss the pattern and possible causes ? c) Would a fitted trend be helpful? ? d) Does 1992-2003 graph suggest fitted trend can predict 2004? ? e) Fit a trend model to 1992-2004 data ? f) Make a forecast for 2004 ? g) Why is it best to ignore earlier data? The t
The owner of the Burger Doodle Resturant is considering two ways to expand operation: open a drive-up window or serve breakfast. Th increase in profits reulting from theise proposed expansions depend on weather a competitor opens franchise down the street. The possible profits form each expansioin in operations, give both fu
The first part of this Application is your analysis using SPSS. To conduct your quantitative analysis, use your course text, (a) Selecting appropriate variables based on type (nominal, ordinal, or scale), calculate descriptive statistics. At the very least, calculate a mean, median, and standard deviation. Be sure to save
A new machine has just been installed to cut and rough-shape large slugs. The slugs are then transferred to a precision grinder. One of the critical measurements is the outside diameter. The quality control inspector randomly selected five slugs each hour, measured the outside diameter, and recorded dthe results. The measurement
Can you give me a brief example of how I can routinely use descriptive statistics in the work place. Include a description of work, the way in which I could calculate the statistics and how the statistics are used in a work.
A new machine has just been installed to cut and rough-shape large slugs. The slugs are then transferred to a precision grinder. One of the critical measurements is the outside diameter. The quality control inspector randomly selected five slugs each hour, measured the outside diameter, and recorded the results. The measurements
What is an example of data that can be transformed from one level of measurement to another, and another example of data that cannot be transformed? And why is validity for measurement so difficult to establish?
In a study of job satisfaction, a series of tests were administered to 50 participants. The following data were obtained; higher scores represent greater dissatisfaction: Use the data of this question to calculate the following: 1. Frequency dist. 2. Relative frequency dist. 3. Cumulative frequency dist. 4. Histogram
An analysis of variance produces SSwithin = 40 and SStotal = 70. In this analysis, what is the value of SSbetwen? A. 30 B. cannot be determined without additional information C. 40 D. 110
At the beginning of 2004, Ms. A purchased a number of share in various companies, as follows: Company Name Number of Shares Purchase Price per Share (cents) Equimix 500 113 Farringdon 800 83 Greenbridge 400
See attached file. The Bureau of Finance has always has always been a relaxed place to work. Employees are allowed a 60 minute lunch break and not required to punch in and out. Recently, the head of the Bureau has come to suspect employees are taking advantage by taking more than 60 minutes. He decides to check and collects t
The number of dry cleaning orders picked up at Sunny Fresh Dry Cleaners was sampled over 4 hour periods. Below is the sample: 61 58 67 52 25 64 38 49 51 61 58 61 27 61 58 34 From this data set, compute the sample mean, median, mode and midrange. Compute the 1st quartile and 3rd and
Develop a model that will determine the total amount of money you will have in the account at: The end of first year; If you deposit $5000 in a saving account that pays 3% annual interest. (Also, define all of the model components).
See the attached file. The Dreskin Development Company is building two apartment complexes. It must decide how many units to construct in each complex subject to labor and material constraints. The profit generated for each apartment in the first complex is estimated at $900, for each apartment in the second complex, $1,500.
The Roller Products Company produces roller skates and skateboards. It has three production lines. Production line 1 makes skateboard platforms. Production line 2 makes skate assemblies. Production line 3 mounts wheels on both products. The marketing department has determined virtually unlimited demand for both products. Profit
4.21,5.55,3.02,5.13,4.77,2.34,3.54,3.20,4.50,6.10,.38,5.12,6.46,6.19,3.79,15.08 a. What descriptive summary measures would you use to present the data. which measure is the best to use and which is the worse and why? b. What conclusion can you draw about the data.
(a) Make a scatter plot of the data. What does it suggest about the correlation between X and Y? (b) Use Excel, MegaStat, or MINITAB to calculate the correlation coefficient. Also calculate the slope of the equation line. 12.4 Moviegoer Spending ($) on Snacks Movies Age (X) Spent (Y) 30 2.85 50 6.50 34 1.50 12