Explore BrainMass

Explore BrainMass

    Descriptive Statistics

    BrainMass Solutions Available for Instant Download

    Descriptive Statiatics & Z Score

    Attached are two files (Excel and Word). Excel comes with 2 questions and, Word comes with 1 question. This week my class covered the average and the standard deviation; the normal approximation for data.

    Theory vs Creativity in Design

    I have to discuss and recommend approaches to creative tension between existing management philosophies and the ability to create new business models. The following two questions must be addressed: * How do leaders integrate innovative principles while adhering to industry and market mandates? * How may an organizatio

    Exploratory Data Analysis for AJ Davis, a department store chain

    See attached data file. AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information about these customers. A sample of 50 credit customers is selected with data collected on the following five variables. LOCATION (Rural, Urban, Suburban), INCOME (in $1,000's - be careful

    Problems with Descriptive Statistics

    City apartment rent ($US) Amsterdam 1,480 Athens 840 Auckland 1,330 Bangkok 550 Barcelona 1,530 Beijing 760 Berlin 920 Bogotá 990 Bratislava 890 Brussels 2,290 Bucharest 930 Budapest 1,190 Buenos Aires 500 Cairo 550 Caracas 2,080 Chicago 2,990 Copenhagen 1,820

    Descriptive Statistics in Excel for AIU

    In each of the assignments in this course, you will be dealing with the following scenario: American Intellectual Union (AIU) has assembled a team of researchers in the United States and around the world to study job satisfaction. Congratulations, you have been selected to participate in this massive global undertaking. The

    Statistics

    Note: If this assignment is in the library I cannot use it because a new set of data is used each session. *******I have no clue how to do this. So PLEASE show me how ! you have been selected to participate in this massive global undertaking for American Intellectual Union The study will require that you examine data,

    Scales of measurement: Nominal, ordinary, interval, & ratio

    Four scales of measurement were introduced in this chapter: nominal, ordinal, interval, and ratio. a. What additional information is obtained from measurements on an ordinal scale compared to measurements on a nominal scale? b. What additional information is obtained from measurements on an interval scale compared to measure

    Multiple Regression Analysis and Time-Series Forecasting...

    See attached file for questions 14.5, 14.7, 14.25, 14.41, 14.43, 14.49, 16.7, 16.13, 16.15, 16.47 Please provide a detailed explanations in the answer to the questions, showing: 1. all work in excel 2. explanations in MS word 14.5 A consumer organization wants to develop a regression model to predict mileage (as measu

    Statistics: Relationship between age and math skills

    See attached file for format of tables. Demographic information on incoming graduate students are in the table below. Faculty are wondering if there is a relationship between age and the math skills (high scores indicate higher skill levels) of these incoming students. What would you conclude? Age Math Skills 23 25 30

    Equations for Cost and Profit

    A small retail store owner has calculated the monthly over head costs at $1,000, and additional operating costs are estimated at $0.12 per dollar of sales. Based on this data the owner has decided to mark-up all items 45% on retail for the coming year. 1. At what annual dollar volume of sales will the store break even? 2. W

    Expected Monetary Value for Investing in Stocks

    A person is considering investing in stocks, bonds, or gold. The possibility exists that the person will not do anything. The payoff table for this is given below. The payoffs represent profits. State of Nature A B C Invest in Stocks -100 -200 1000 Invest in Bonds 350 300 200 Invest in Gold 150 250 300 Do Nothi

    Central Tendency Measures: Average Level of Reading Ability

    A researcher tested the reading ability of two groups of primary care patients. The scores on the test range from 1 to 9 with 9 indicating a high degree of reading ability and 1 very limited reading ability. The researcher is interested in knowing the average level of reading ability for each group separately and for the sample

    Descriptive Statistics Consultant

    A statistical consultant was retained by a linen supplier to analyze a survey of hospital purchasing managers. After looking at the data, she realized that the survey had missed several key geographic areas and included some that were outside the target region. Some survey questions were ambiguous. Some respondents failed to ans

    Bond Rating Services

    Bond Rating Who are the rating services and what are their bond ratings? Based on the ratings, what are the differences between investment grade bonds and junk bonds? What do the ratings mean and how important are the ratings when buying a bond? When would buy an investment grade bond? When would you buy a junk bond?

    Path- Distance (Shortest Route)

    Consider the following shortest-route problem involving seven cities. The distances between the cities are given below. Draw the network model for this problem and formulate the LP for finding the shortest route from City 1 to City 7 Path Distance 1 to 2 6 1 to 3 10 1 to 4 7 2 to 3

    The temperature in December in Buffalo , New York , is often below 40 degrees Fahrenheit (4 degrees Celsius). Not surprisingly, when the National League Buffalo Bills play at home in December, coffee is a popular item at the concession stand. The concession manager would like to acquire more information so he can manage inventories more efficiently. The number of cups of coffee sold during 50 games played in December in Buffalo were recorded. The results are in file Xr04-84.

    The temperature in December in Buffalo , New York , is often below 40 degrees Fahrenheit (4 degrees Celsius). Not surprisingly, when the National League Buffalo Bills play at home in December, coffee is a popular item at the concession stand. The concession manager would like to acquire more information so he can manage inventor

    Finding the Expected Value of Raffle Tickets

    The symphony sells raffle tickets each year to raise money. Assume they sell 2000 tickets and the tickets cost $100 each. The top prize is a $50,000 car and the second prize is a $5,000 gift certificate from a jewelry store and the third prize is a $1,000 shopping spree at an area mall. Find the expected value of buying a raffle

    Feedback on descriptive statistics

    1. What are some examples of descriptive statistics? Why are they used in research? What is a confidence interval? 2. How can you avoid bias when selecting samples for human services research? List the three measures of variability and provide one example of each. If in a response team, what may these measures of variab

    Sampling Methods, Frequency Distribution, Stem & Leaf Plot

    See attached file graphs. 1. Given the situation described, identify the type of sampling involved. At a newspaper office, staffers are classified by the department in which they work. Then random samples from each department are taken. a. random sampling b. systematic sampling c. convenience sampling

    Types of Data Points: Moms Delivering Newborns

    What are some other data points that we can collect for moms who deliver? I'll start us out with a couple of examples: * Weeks of gestation at time of delivery * How many visitors the patient had * Weight of baby at birth

    ADVERTISEMENT