Gen Combo Ll Applied Statistics In Business & Economics; Connect Access Card
6th Edition
ISBN: 9781260260632
Author: David Doane, Lori Seward Senior Instructor of Operations Management
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1.3, Problem 2SE
Give an example of how statistics might be useful lo the person in the scenario.
- a. A personnel executive is examining job turnover by gender in different restaurants in a fast-food chain.
- b. An intranet manager is studying e-mail usage rates by employees in different job classifications.
- c. A retirement planner is studying mutual fund performance for six different types of asset portfolios.
- d. A hospital administrator is studying surgery scheduling to improve facility utilization rates at different times of day.
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The following table shows a data set containing information for 45 mutual funds that are part of the Morningstar Funds 500 for 2008. . The data set includes the following five variables:
Use Excel to answer the following question:
a. Prepare a crosstabulation of the data on Fund Type (row variable) and the average annual return over the past 5 years (column variable). Use classes of 0–10, 10–20, 20–30, 30–40, 40–50, and 50–60 for the 5-Year Average Return (%) (Class width is 10).
B. Construct frequency distributions for Fund Type and 5-Year Average Return (%) respectively. Based on the frequency distributions of the two variables, which of the following answers is wrong?
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Out of the 45 mutual funds, there are 2 funds with 5-year average return of 30 - 40 (%).
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Q5.
The Dow Jones Industrial Average (DJIA) and the Standard & Poor's 500 (S&P 500) indexes are used as measures of overall movement in the stock market. The DJIA is based on the price
movements of 30 large companies; the S&P 500 is an index composed of 500 stocks. Some say the S&P 500 is a better measure of stock market performance because it is broader based.
Suppose the closing price for the DJIA and the S&P 500 for 144 days in a certain year are as provided in the file closingprices3.xlsx.
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The scatter chart indicates there may be a positive linear relationship between DJIA and S&P 500.
The scatter chart indicates there may be no noticeable linear relationship between DJIA and S&P 500.
The scatter chart indicates there may be a negative linear relationship between DJIA and S&P 500.
(b) Develop an estimated linear…
Chapter 1 Solutions
Gen Combo Ll Applied Statistics In Business & Economics; Connect Access Card
Ch. 1.3 - Give an example of how statistics might be useful...Ch. 1.3 - Give an example of how statistics might be useful...Ch. 1.3 - (a) Should the average business school graduate...Ch. 1.3 - Many college graduates will not use very much...Ch. 1.5 - Recently, the same five winning numbers (4, 21,...Ch. 1.5 - A National Health Interview Survey conducted by...Ch. 1.5 - A study found that radar detector users have lower...Ch. 1.5 - A lottery winner told how he picked his six-digit...Ch. 1.5 - Smokers are much more likely to speed, run red...Ch. 1.5 - An ad for a cell phone service claims that its...
Ch. 1.5 - What logical or ethical problems do you see in...Ch. 1.5 - A recent study of 231,164 New Jersey heart attack...Ch. 1.5 - When Pennsylvania repealed a law that required...Ch. 1 - Define (a) statistic; (b) statistics.Ch. 1 - List three reasons to study statistics.Ch. 1 - List three applications of statistics.Ch. 1 - List four skills needed by statisticians. Why are...Ch. 1 - List three practical challenges faced by...Ch. 1 - List three ethical challenges faced by...Ch. 1 - List five pitfalls or logical errors that may...Ch. 1 - A survey of beginning students showed that a...Ch. 1 - Under a recent U.S. Food and Drug Administration...Ch. 1 - A statistical consultant was retained by a linen...Ch. 1 - Ergonomics is the science of making sure that...Ch. 1 - Analysis of 1,064 deaths of famous popular...Ch. 1 - A recent study showed that women who lived near a...Ch. 1 - Lacrosse helmets are not needed, said Tom. None of...Ch. 1 - A European study of thousands of men found that...Ch. 1 - A research study showed that 7 percent of A...Ch. 1 - A research study showed that adolescents who...Ch. 1 - The Graduate Management Admission Test (GMAT) is...Ch. 1 - (a) Which of these two displays (table or graph)...Ch. 1 - (a) Which of these two displays (table or graph)...
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