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
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
Question: The results of an entrance exam follow a normal statistical curve with an average of 80 and a standard deviation of 5. 90% of the candidates are admitted. Will someone with a 76 be admitted?
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
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
Explain descriptive statistics. Include in your discussion information on how this topic may prove useful in the work of others conducting research.
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
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
Motion Picture Industry: Descriptive statistics; Relationship between total gross sales and other variables
See the attached files. Motion Picture Industry. Read the Motion Picture Industry case study and using this data set please provide a Managerial Report that includes the following: Descriptive statistics (see 'Key Formulas' in your textbook for a list) for each of the four variables along with an explanation of what the des
Why is it useful to know something about the shape of a set of numbers (a "dataset")? What is an example of a variable that would measured in such a way that we could look at the shape of its dataset's distribution of measurements?
What are the main differences between descriptive and inferential statistics? What is each used to accomplish?
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?
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
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
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
What is the ROP? How is it determined?
Describe briefly the steps used to develop a forecasting system.
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
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
The following data lists the average monthly snowfall for January in 15 cities around the US: 42 45 8 18 45 15 31 46 3 33 2 6 32 47 36 Find the mean, variance, and standard deviation. Please show all of your work.
Given the following frequency distribution, find the mean, variance, and standard deviation. Please show all of your work. Class Frequency 36-38 18 39-41 7 42-44 12 45-47 22 48-50 13
What factors contribute to a skewed distribution? Provide an example, not from the text, that might have variables that would skew the data and graph of data points. Note: Please see your text on what skewed (left/right) graphs mean for the data. It does not mean that the data was made up or collected incorrectly.
Use excel to compute the descriptive statistic for the following data set: 25,45,73,16,34,98,34,45,26,2,56,97,12,445,23,63,110,12,17, and 41.
What are some conditions under which business decisions are made using subjective probability concepts? Give examples of subjective probability. Give three different examples of where you might apply descriptive statistics in a workplace. Explain why each is appropriate for the data you are describing. Where might you use
See attached data file. Compute the standard deviation of the average annual household income levels of citizens from selected U.S. metropolitan areas in the file P03_06.xlsx. Is it appropriate to apply the empirical rules for these data? Explain.
What are the main differences between descriptive and inferential statistics? Provide an example of either type of statistics either from a recent study you heard about or a made up study you'd be interested in learning about.
Descriptive Statistics: Tell a story from a dataset using descriptive statistics, confidence intervals, and hypothesis tests.
I have no idea how to work confidence intervals and apply the hypothesis tests. Help would be greatly appreciated. I need help creating a question and applying the data to it. Any of the data sheets posted can be used. Thank you! --------------------------------------------------------- See attached files. This may be
What is the role of an OD (Organizational Development) consultant as a change leader? What are the core competencies of an OD professional? Is their any value in reviewing theoretical literature in OD that can provide a theoretical framework or is it purely by experiences? What relationship, if any, exists between theory and p
Please help with the following problem. What percentage of the grand total of students are females in the Lang Arts program? How would you interpret the relationship between gender and majors in this graph? List the percentages of students in each major area as compared to the grand total. degree