Descriptive statistic results from quarterly sales figures over a 18 year period (73 qtr) are below. Please interpret the standard Deviation and Median in terms of sales results, so I can explain the sales in written form. Table 1 Net Sales (in thousands) Mean = $6,343,231 Median = $6,348,797 Standard Deviation = $2,473,
How may variance and standard deviation be applied to a real-world business-related problem? Provide a specific application in which these measures are useful.
Andalus Furniture Company has two manufacturing plants, one at Aynor and another at Spartanburg. The cost in dollars of producing a kitchen chair at each of the two plants is given here. Aynor Cost = 75Q_1+ 5Q2/1 + 100 Spartanburg Cost = 25Q_2+ 2.5Q2/2+ 150 Where Q1 = number of Chairs produced at Aynor Q2 = Number of
Case Problem: Compensation for Sales Professionals Suppose that a local chapter of sales professionals in the greater San Francisco area conducted a survey of its membership to study the relationship, if any, between the years of experience :low (1-10), medium (11-20 years), and high (21 or more years). A portion of the data
A researcher has determined that the distribution of annual salaries of NBA players is bell-shaped and symmetrical about the mean salary, do you think that introducing Michael Jordan's last annual salary of more than $30 million would skew this distribution? Explain why or why not. What would be the best measure of central tende
Explain what is meant by mean, median, mode, variance, and standard deviation for a set of scores. Also mention under what circumstance you would use each of these.
Please solve with the following problem. Provide step by step calculations with explanations. John is investing in the S&P 500. His expected return on the S&P 500 is 10% with a standard deviation of 4%. If John is investing $200,000, then what is the dollar range of returns that John can have with 90 percent confidence at th
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 study will require that you examine data, analyze the res
You have chosen biology as your college major because you would like to be a medical doctor. However, you find that the probability of being accepted into medical school is about 10 percent. If you are accepted into medical school, then your starting salary when you graduate will be $300,000 per year. However, if you are not acc
** Please see the attached file for the complete problem description ** 1) Calculate the mean, mode, median and standard deviation of the means. 2) How does this illustrate the central limit theorem? 3) What is the probability that the mean lies between 5 & 6? 4) What is the 95% confidence interval for the mean? 5) What i
Problem 1 Given y = f(x) = x2 + 2x +3 a) Use the definitional formula given below to find the derivative of the function. b) Find the value of the derivative at x = 3. Problem 2 Given, y = f(x) = 2 x3 - 3x2 + 4x +5 a) Use the Power function to find derivative of the function. b) Find the value of the derivative at x =
Need help on how to solve some questions on my homework: 1. What type of graph can I use to recor the colors of students eyes? 2. In a pie graph displaying the number of pizzas sold one day, the number of pepperoni pizzas sold is represented by a 90° section. If there were 72 pizzas sold in total that day, how many were pepp
Mia Hamm, who retired after the 2004 Olympics, is considered by some to be the most prolific player in international soccer. The following data represent the number of goals scored over her 18 year career. 0 0 0 4 10 1 10 10 19 9 18 20 13 13 2 7 8 13 a. Constr
1. Calculate the mean, median, range, and standard deviation of home price and size. 2. Assume that the price for home number 66 had been mistyped as 427.9 instead of 247.9. Would the value of each of these statistics increase, decrease, or remain the same? Mean. Median. Range. Standard deviation. 3. Calculate th
For the Hospital Labor Needs Case (data set HospLab), use the dependent variable Monthly Labor Hours Required, y, and only the following 2 independent variables: Monthly X-Ray Exposures, x1, and Monthly Occupied Bed Days, x2. a. Description/Point Estimates: Central Tendency: write out the multiple regression equati
See the attached files. Have issues making sure these are correct. Must be answered in Excel. 1. A branch of chain of large electronics stores is conducting an end-of-month inventory of the merchandise in stock. There were 1546 items in inventory at that time. A sample of 50 items was randomly selected, and an audit was c
1. Use WorldCat (in FirstSearch), a database selected in ProQuest, and ebrary to search for your topic. What is the major difference between WorldCat and the ProQuest database you selected? How does WorldCat differ from your local library catalog? Describe ebrary and how it differs from your local library catalog? 2. For Pro
The topic that I will be researching will be focused on the effectiveness of grass roots marketing campaigns for community colleges. 1. How do Google and Metacrawler compare to the Vivisimo search engine? 2. Compare the results of your search, not only in terms of the number of hits, but also in terms of the value of the i
[1] The computer giant IBM has 329,373 employees and 637,133 stockholders. A vice president plans to conduct a survey to study the number of shares held by individual stockholders. Are the numbers of shares held by stockholders discrete or continuous? Identify the level of measurement (nominal, ordinal, interval, ratio) f
Many times we have seen and heard of statistics being used inappropriately, especially within our government agencies. One particular agency out of the many others had given inappropriate reports on economic conditions based on the unemployment rate in the country. Often times, these reports only include the average number of in
What are the characteristics of a population for which a mean/median/mode would be appropriate? Give some examples.
In a unimodal, symmetrical distribution as shown in the figure below, A) the mean is the same as the median, but the mode can be different. B) the mean, the median, and the mode are the same. C) the median and the mode are the same, but the mean can be different. D) the mean, the median, and the mode are different.
I have one more control chart which is a X R Chart. Prepare the chart and any information that should go along with it such as trends, runs, or is it out of control. (UCL, LCL) A large hotel in a resort area has a housekeeping staff who clean and prepare all of the hotel's guest rooms daily. In an effort to improve service th
Work with the data file "cjgss1.sav". 1. Examine the meaning (in "Label") and values of the following four variables: "hit", "gun", "burglar" and "robbry"; answer the following questions: o How are these variables similar? o Describe how these variables are coded (i.e., their values). o What concept will a combination of t
Given the following information, what is the standard deviation for this stock? Probabilities: Recession:0.3 Normal:0.45 Boom:0.25 Returns: Recession:12% Normal:8% Boom:-16% 1. 11.21 percent 2. 9.85 percent 3. 12.87 percent 4. 10.75 percent 5. 9.22 percent
A stockholder placed the following order for a customer: 50 shares of kaiser aluminum preferred at $104 a share 100 shares of GTE preferred at $25.25 a share 20 shares of Boston Edison preferred at $9.125 a share What is the weighted arithmetic mean price per share?
In order to control costs. a company wishes to study the amount of money its sales force spends entertaining clients. The following is a random sample of six entertainment expenses (dinner costs for four people) from expense reports submitted by numbers of the sales force. Sales force numbers 157 132 109 145 125 139
I attached a file. I need your help and this file is very important to me. 1. Which of the following statements about descriptive statistics are correct? Why? a. All of the data is used to compute the mean b. The mean should be preferred to the median if the data are noticeably skewed c. The variance has the same units of
Problem Set 1 The next tab contains data on a sample of 1080 salespeople from a large electronics retail company. The dataset contains the following variables: Sales: Total sales (in $) by each salesperson last year Department: What department (home electronics, computers, etc) the salesperson works in. Year born: The y
**SUMMARY OF PROBLEM:** Section A: The company is thinking of launching a new product line and wishes to assess the likely response from regular customers. 1.What was the data mean or average satisfaction score? 2.What was the mode? 3.What was the median? 4.What was the standard deviation? 5.Which of the statistica