Question: In 2015, Addison Group and Kelton surveyed
In 2015, Addison Group and Kelton surveyed the work preferences and attitudes of 1006 working adults spread over three generations—Baby Boomers, Generation X, and Millennials (Society for Human Resource Management website). One question asked individuals if they would leave their current job to make more money at another job. The file Millennials contains the sample data, which is also summarized in the following table
Conduct a test of independence to determine whether interest in leaving a current job for more money is independent of employee generation. What is the p-value? Using a .05 level of significance, what is your conclusion?
> Americans tend to dine out multiple times per week. The number of times a sample of 20 families dined out last week provides the following data. a. Compute the mean and median. b. Compute the first and third quartiles. c. Compute the range and interquar
> In 2014, the Centers for Disease Control and Prevention reported the percentage of people 18 years of age and older who smoke. Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the proportion who s
> Best Buy, a nationwide retailer of electronics, computers, and appliances, sells several brands of refrigerators. A random sample of models of full size refrigerators prices sold by Best Buy and the corresponding cubic feet (cu. ft.) and list price follo
> Hamilton County judges try thousands of cases per year. In an overwhelming majority of the cases disposed, the verdict stands as rendered. However, some cases are appealed, and of those appealed, some of the cases are reversed. Kristen Deglaze of The Cin
> The following data show the annual revenue ($ millions) and the estimated team value ($ millions) for the 30 Major League Baseball teams (Forbes website). a. Develop a scatter diagram with Revenue on the horizontal axis and Value on the vertical axis.
> Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its new computer wheel alignment and balancing machine. Managers feel that maintenance expense should be related to usage, and they collected the followin
> The file Cost Living contains the cost of living indexes and the population densities (number of people per square mile) for 61 cities in the United States. The cost of living index measures the cost of living in a particular city relative to the cost of
> Major League Baseball franchises rely on attendance for a large share of their total revenue, and weekend games are particularly important. The following table shows the attendance for the Houston Astros for games played during seven weekend series for t
> For the week ended January 15, 2009, the bullish sentiment of individual investors was 27.6% (AAII Journal). The bullish sentiment was reported to be 48.7% one week earlier and 39.7% one month earlier. The sentiment measures are based on a poll conducted
> The American Association of Individual Investors (AAII) conducts a weekly survey of its members to measure the percent who are bullish, bearish, and neutral on the stock market for the next six months. For the week ending March 27, 2019, the survey resul
> Suppose N 5 15 and r 5 4. What is the probability of x 5 3 for n 5 10?
> Suppose a sample of 10001 erroneous Federal income tax returns from last year has been taken and is provided in the file FedTaxErrors. A positive value indicates the taxpayer underpaid and a negative value indicates that the taxpayer overpaid. Also supp
> The Pew Research Center Internet Project provides a variety of statistics on Internet users. For instance, in 2018, 11% (or 220) of the 2002 American adults surveyed were not Internet users. In 2000, 48% of the American adults in the survey did not use t
> The Wall Street Journal reported that 37% of all entrepreneurs who opened new U.S. businesses in the previous year were female. a. Suppose a random sample of 300 entrepreneurs who opened new U.S. businesses in the previous year will be taken to learn ab
> The pursuit of a higher education degree in business is now international. A survey shows that more and more Asians choose the master of business administration (MBA) degree route to corporate success. As a result, the number of applicants for MBA course
> Consider the Spontanversation sampling problem for which individuals who have downloaded Spontanversation use the app an average of 30 times per day with a standard deviation of 6. a. What is the probability that x is within 1.7 of the population mean i
> Martina Levitt, director of marketing for the messaging app Spontanversation, has been assigned the task of profiling users of this app. Assume that individuals who have downloaded Spontanversation use the app an average of 30 times per day with a standa
> The Wall Street Journal reported that 37% of all entrepreneurs who opened new U.S. businesses in the previous year were female. a. Suppose a random sample of 300 entrepreneurs who opened new U.S. businesses in the previous year will be taken to learn ab
> Data showing the population by state as of 2012 in millions of people follow (The World Almanac). a. Develop a frequency distribution, a percent frequency distribution, and a histogram. Use a class width of 2.5 million. b. Does there appear to be any s
> The file Median Household contains the median household income for a family with two earners for each of the fifty states (American Community Survey, 2013). a. Construct a frequency and a percent frequency distribution of median household income. Begin
> The SAT is a standardized test used by many colleges and universities in admission decisions. More than 1.8 million high school students take the SAT each year. The 2019 version of the SAT is composed of two sections: evidence-based reading and writing,
> A Gallup Poll showed that 30% of Americans are satisfied with the way things are going in the United States (Gallup website). Suppose a sample of 20 Americans is selected as part of a study of the state of the nation. The Americans in the sample are aske
> 4K televisions (TVs) contain approximately four times as many pixels to display images as a 1080-display TV, and so they offer much higher picture resolution. Suppose that the following survey results show 4K TV ownership compared to ownership of 1080 TV
> The following data show the percentage of 17- to 24-year-olds who are attending college in several metropolitan statistical areas in four geographic regions of the United States (U.S. Census Bureau website).
> A study conducted by the Pew Research Center showed that 75% of 18- to 34-year-olds living with their parents say they contribute to household expenses (The Wall Street Journal). Suppose that a random sample of fifteen 18- to 34-year-olds living with the
> Jon Weidman, first shift foreman for Cut-Rate Machining, Inc., is attempting to decide on a vendor from whom to purchase a drilling machine. He narrows his alternatives to four vendors: The Hole-Maker, Inc. (HM); Shafts & Slips, Inc. (SS); Judge&acir
> What percentage of the population live in their state of birth? According to the U.S. Census Bureau’s American Community Survey, the figure ranges from 25% in Nevada to 78.7% in Louisiana. The average percentage across all states and th
> A population has a mean of 400 and a standard deviation of 100. A sample of size 100,000 will be taken, and the sample mean x will be used to estimate the population mean. a. What is the expected value of x? b. What is the standard deviation of x? c. Sho
> The U.S. Bureau of Labor Statistics reports that 10.2% of U.S. workers belonged to unions in 2018. Suppose a sample of 400 U.S. workers is collected in 2019 to determine whether union efforts to organize have increased union membership. a. Formulate the
> In exercise 24, an estimated regression equation was developed relating the percentage of games won by a team in the National Football League during a complete season to the average number of passing yards obtained per game on offense and the average num
> Refer to the data in exercise 2. The estimated regression equation for those data is
> The American Association of Individual Investors (AAII) conducts a weekly survey of its members to measure the percent who are bullish, bearish, and neutral on the stock market for the next six months. For the week ending March 27, 2019, the survey resul
> Scores turned in by an amateur golfer at the Bonita Fairways Golf Course in Bonita Springs, Florida, during 2018 and 2019 are as follows: a. Use the mean and standard deviation to evaluate the golfer’s performance over the two-year pe
> Refer to the data presented in exercise 2. The estimated regression equation for these data is
> Consumer Reports conducted extensive tests of GPS-based navigators and developed an overall rating based on factors such as ease of use, driver information, display, and battery life. The following data show the price and rating for a sample
> The following data are from a completely randomized design. In the following calculi a. Use analysis of variance to test for a significant difference among the means of the three treatments. b. Use Fisher’s LSD procedure to determine
> Cincinnati, Ohio, also known as the Queen City, has a population of just over 300,000 and is the third largest city in the state of Ohio. The Cincinnati metropolitan area has a population of about 2.2 million. The city is governed by a mayor and a nine-m
> The Daytona 500 is a 500-mile automobile race held annually at the Daytona International Speed way in Daytona Beach, Florida. The following cross tabulation shows the automobile make by average speed of the 25 winners from 1988 to 2012 (The World Almanac
> Mars, Inc. manufactures M&€™s, one of the most popular candy treats in the world. The milk chocolate candies come in a variety of colors including blue, brown, green, orange, red, and yellow (M&M website). The overall proportions for th
> Historically, the industries with the most complaints to the Better Business Bureau have been banks, cable and satellite television companies, collection agencies, cellular phone providers, and new car dealerships. The results for a sample of 200 complai
> Bistro 65 is a chain of Italian restaurants with locations in Ohio and Kentucky. The Bistro 65 menu has four categories of entrées: Pasta, Steak & Chops, Seafood, and Other (e.g., pizza, sandwiches). Historical data for the chain show th
> Consider a sample with data values of 27, 25, 20, 15, 30, 34, 28, and 25. Compute the range, interquartile range, variance, and standard deviation.
> Suppose we have a multinomial population with four categories: A, B, C, and D. The null hypothesis is that the proportion of items is the same in every category. The null hypothesis is
> Pew Research Center is a nonpartisan polling organization that provides information about issues, attitudes, and trends shaping America. In a 2015 poll, Pew researchers found that 73% of teens aged 13–17 have a smartphone, 15% have a basic phone and 12%
> According to Box Office Mojo, the film Black Panther achieved the top opening weekend gross domestic box office ticket sales in 2018 with $202,033,951. The ticket sales revenue in dollars for a sample of 30 theaters is provided in the file Black Panther.
> Kate Sanders, a researcher in the department of biology at IPFW University, studied the effect of agriculture contaminants on the stream fish population in northeastern Indiana. Specially designed traps collected samples of fish at each of four stream lo
> As the price of oil rises, there is increased worldwide interest in alternate sources of energy. The Financial Times/ Harris Poll surveyed people in six countries to assess attitudes toward a variety of alternate forms of energy. The data in the followin
> The movie industry is a competitive business. More than 50 studios produce hundreds of new movies for theater release each year, and the financial success of each movie varies considerably. The opening weekend gross sales ($ millions), the total gross sa
> A CBS News/New York Times poll of 1,000 adults in the United States asked the question, “Do you think global warming will have an impact on you during your lifetime?” (CBS News website). Consider the responses by age g
> The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler
> The following results are for independent random samples taken from two populations. a. What is the point estimate of the difference between the two population means? b. What is the degrees of freedom for the t distribution? c. At 95% confidence, what
> In this section we showed how a simple random sample of 30 EAI employees can be used to develop point estimates of the population mean annual salary, the population standard deviation for annual salary, and the population proportion having completed the
> The following data show the number of rental cars in service for three rental car companies: Hertz, Avis, and Dollar, over a four-year period a. Construct a time series graph for the years 1 to 4 showing the number of rental cars in service for each co
> In 2018, the Pew Internet & American Life Project asked 743 teens aged 13 to 17 several questions about their attitudes toward social media. The results showed that 602 say social media makes them feel more connected to what is going on in their friends’
> Condé Nast Traveler conducts an annual survey in which readers rate their favorite cruise ship. All ships are rated on a 100-point scale, with higher values indicating better service. A sample of 37 ships that carry fewer than 500 passengers resulted in
> Consider the following hypothesis test. a. What is the value of the test statistic? b. What is the p-value?
> As part of a long-term study of individuals 65 years of age or older, sociologists and physicians at the Wentworth Medical Center in upstate New York investigated the relationship between geographic location and depression. A sample of 60 individuals, al
> Pelican Stores, a division of National Clothing, is a chain of women’s apparel store operating throughout the country. The chain recently ran a promotion in which discount coupons were sent to customers of other National Clothing stores
> What impact will artificial intelligence (AI) have on the field of project management?
> Why would IBM want to move from computer hardware to service products?
> Do you agree with Ron Parker’s statement “To be successful, you must also be willing to run at problems/opportunities when everyone else is running away from them”?
> What do you think are the major differences between “Danish time” and “African time”?
> Did the project manager have any other alternatives?
> Do you have any superstitions that influence how you work?
> Why didn’t Rondon tell Roosevelt and the Americans that they couldn’t take so much luggage on the exploration?
> Would you consider the filming of Apocalypse Now a success or not?
> Would more effective risk management have prevented the problems the project encountered?
> How does having a product vision and using Scrum rituals help teams manage tension and conflict?
> Lukas Nelson and his wife, Anne, and their three daughters had been living in their house for over five years when they decided it was time to make some modest improvements. One area they both agreed needed an upgrade was the bathtub. Their current house
> Why not use the waterfall method to develop new champions?
> Why is it useful to hold retrospectives at the end of weekly iterations?
> Can you think of a personal project that would have benefited from prototyping? How? Why?
> What are the advantages of rapid prototyping?
> What effect do you think 360-degree reviews have on the culture of an organization?
> Have you been the subject of a 360-degree review or participated in one? What was it like? How useful was it?
> How did the project management system evolve at Navy Federal Credit Union?
> Assume you are to command a similar mission. What are two things you would insist on, based on what you learned about Eagle Claw?
> What could the NBA have done differently to increase the likelihood of success?
> How did the culture of the NBA affect this project?
> Brandon was having an ale with his girlfriend, Sierra, when the subject of the Omega Theta Pi 5K-run project came up. Brandon has been chosen to chair the 5K-charity run for his fraternity. At the time, Brandon thought it would look good on his resume an
> What was Sally able to achieve by holding a wake for the canceled project?
> Why do organizations use the percent complete instead of the cheaper, easier pseudo-earned value percent approach?
> How did limiting work packages to one week help management identify problems sooner?
> What additional information would you like to have in order to assess performance on the project?
> Based on the information provided in Exhibit 13.2, how well is the Decommissioning project doing in terms of cost and schedule?
> Should milestones only be on the critical path?
> Why should a milestone be a concrete, specific, measurable event?
> Does partnering only work on construction projects?
> What best practices are evident in this snapshot?
> Has anyone used these strategies when dealing with foreigners? Or wish he or she had?
> Patti Smith looked up at the bright blue Carolina sky before she entered the offices of Horizon Consulting. It was Friday, which meant she needed to prepare for the weekly status report meeting. Horizon Consulting is a custom software development company
> What does this project say about the importance of taking a socio-technical approach to projects?
> What disadvantages of outsourcing were evident in the Boeing 787 project?
> How did Singer establish effective patterns of communication?
> How did Singer enhance trust on his project?
> Looking back on your experience working on low-priority projects, did any of these strategies work?
> In addition to acting as a cheerleader, what other important roles does Tom West suggest a project manager play?
> How easy do you think it is to identify people who respond to challenges?
> What similarities do you see between the Ford Diesel team and the Mac team at Apple and the Skunk Works at Lockheed?
> How important is a fun culture for innovation?
