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kJ A survey of 139 investment managers in a poll revealed the following. o 47% of managers classied themselves as bullish or very bullish on

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kJ A survey of 139 investment managers in a poll revealed the following. o 47% of managers classied themselves as bullish or very bullish on the stock market. 0 The average expected return over the next 12 months for equities was 11.6%. - 28% selected health care as the sector most likely to lead the market in the next 12 months. c When asked to estimate how long it would take for technology and telecom stocks to resume sustainable growth, the managers' average response was 2.2 years. (a) Cite two descriptive statistics. (Select all that apply.) C] of those investment managers surveyed, 47% were bullish or very bullish on health care stocks over the next 2.2 years. CI of those investment managers surveyed, 28% selected health care as the sector most likely to lead the market in the next 12 months. D of those investment managers surveyed, 47% were bullish or very bullish on the stock market. C] Of those investment managers surveyed, 11.6% expect it would take 12 months for equities to resume sustainable growth. C] of those investment managers surveyed, 47% selected technology and telecom stocks to be the sector most likely to lead the market in the next 12 months. (b) Make an inference about the population of all investment managers concerning the average return expected on equities over the next 12 months. We estimate the average expected 12-month return on equities for -Select- VI to be %. (c) Make an inference about the length of time it will take for technology and telecom stocks to resume sustainable growth. We estimate the average length of time it will take for technology and telecom stocks to resume sustainable growth for l-Select Vitobe years. . Viewin Sal/ed Work Revert to LastRe nse SubmitAnswer g m The complete data set of 103 private colleges and universities is contained in the le named Colleges. The data include the name of the college or university, the year the institution was founded, the tuition and fees (not including room and board) for the most recent academic year, and the percentage of full-time, rst-time bachelor's degree-seeking undergraduate students who obtain their degree in six years or less.t Refer to the data set. (a) Construct a scatter diagram to show the relationship between Year Founded and Tuition & Fees. 50.000 50.000 50,000 A 45,000 A 45,000 . A 45,000 0 . 3 40,000 a 40,000 2 40,000 .' 0". . . a\Refer to the following table. t Product Information for 10 Tablet Computers Cost Operating Display Size Battery Life CPU Tablet ($) System (inches) (hours) Manufacturer Acer Iconia W510 599 Windows 10.1 8.5 Intel Amazon Kindle Fire HD 299 Android 8.9 9 TI OMAP Apple ipad 4 499 iOS 9.7 11 Apple HP Envy X2 860 Windows 11.6 8 Intel Lenovo ThinkPad Tablet 668 Windows 10.1 10.5 Intel Microsoft Surface Pro 899 Windows 10.6 4 Intel Motorola Droid XYboard 530 Android 10.1 9 TI OMAP Samsung Ativ Smart PC 590 Windows 11.6 7 Intel Samsung Galaxy Tab 525 Android 10.1 10 Nvidia Sony Tablet S 360 Android 9.4 8 Nvidia (a) What is the average cost for the tablets? $ 582.9 (b) Compare the average cost of tablets with a Windows operating system to the average cost of tablets with an Android operating system. The average cost of a tablet with a Windows operating system is $ 723.2 . The average cost of a tablet with an Android operating system is $ 428.5 . Thus we see tablets with Windows operating systems cost more than | than tablets with an Android operating system, on average. (c) What percentage of tablets use a CPU manufactured by Intel? 20 * % (d) What percentage of tablets use an Windows operating system? 40 X %The following data show the number of rental cars in service for three rental car companies: Hertz, Avis, and Dollar over a three-year period: Cars In Service (10005) Year 1 Year 2 Year 3 Year 4 290 Dollar 108 Avis 204 220 300 270 (a) Construct a time series graph for the years 1 to 4 showing the number of rental cars in service for each company. Show the time series for all three companies on the same graph. 35:) 350 300 am 7.: Hertz 13 o o 8 250- 8 LSD C C g 200- Avis E 200 g 150- 3 150 .E E m 100- Dollar m 100 E a u u 50 50 o llll 0 Year 1 Year 2 Year 3 Year 4 Year 1 Year 2 Year 3 Year 4 Year 0 Year G 350 350 300 _ 300 'm' AVIS 7,? Dollar :3 v: 8 7.50- 8 150 1". 1". 0 I) - E 200 Dollar E 200 AVIS 3 150 3 150 5' Hertz '5 Hertz loo 100 l Avis |204 l 220 l 300 l 270' (a) Construct a time series graph for the years 1 to 4 showing the number of rental cars in service for each company. Show the time series for all three companies on the same graph. 350 300 750 200 150 100 Cars in Service (10005) 350 150 150 100 Cars in Service (10005) Year 1 Year 2 Year 3 Year 4 Year Year 1 Year 2 Year 3 Year 4 Year @0 (30 Cars in Service (10005) Cars in Service (10005) 350 300 LSD 200 150 100 Year 1 Year 2 Year 3 Year 4 Year 350 150 200 150 100 Year 1 Year 2 Year 3 Year 4 Year (b) Comment on who appears to be the market share leader and how the market shares are changing over time. 0 In Year 1 and Year 2, Hertz was the clear market share leader. In Year 3 and Year 4, Herlz and Dollar have approximately the same market share. The market share for Avis appears to be declining. Q In Year 1 and Year 2, Avis was the clear market share leader. In Year 3 and Year 4, Dollar and Avis have approximately the same market share. The market share for Herll appears to be declining. O In Year 1 and Year 2, Avis was the clear market share leader. In Year 3 and Year 4, Avis and Hertz have approximately the same market share. The market share for Dollar appears to be declining. O In Year 1 and Year 2, Hertz was the clear market share leader. In Year 3 and Year 4, Hertz and Avis have approximately the same market share. The market share for Dollar appears to be declining. O In Year 1 and Year 2, Dollar was the clear market share leader. In Year 3 and Year 4, Dollar and Hertz have approximately the same market share. The market share for Avis appears to be declining. (c) Construct a bar chart showing rental cars in service for Year 1. 350 :50 350 a zoo 7'\" zoo 7'7 son 3 m E m S m g zoo % zoo % zoo an 150 w 150 u 150 {I} {I} m 5 mo 5 mo 5 ion g so g so g so 0 o o Hertz Dollar Avis Hertz Dollar Avis Hertz Dollar Avis Company (D 0 Company (D 0 Company (D Cars in Service (10005) Hertz Dollar Avis 0 Company (D The SAT is a standardized test used by many colleges and universities in their admission decisions. More than one million high school students take the SAT each year. The current version of the SAT includes three parts: reading comprehension, mathematics, and writing. A perfect combined score for all three parts is 2,400. A sample of SAT scores for the combined three-part SAT are as follows. 1,355 1,430 1,160 1,365 1,380 1,470 1,740 1,465 1,580 1,560 1,775 1,485 960 2,130 1,150 1,875 1,750 1,595 1,055 1,780 1,660 1,565 1,995 1,680 1,455 1,440 1,675 1,375 1,275 1,390 (a) Show a frequency distribution. Begin with the first class starting at 800 and use a class width of 200. Class Frequency 800-999 1 1,000-1,199 2 X 1,200-1,399 5 X 1,400-1,599 11 X 1,600-1,799 7 1,800-1,999 3 2,000-2,199 1 Total 30 Show a histogram. Begin with the first class starting at 800 and use a class width of 200. 12 12 12 10 10 10 8 8 8O O Frequency Frequency N 00 10 12 N 10 12 8 800-999 800-999 1,000-1,199 1,000-1,199 1,200-1,399 1,200-1,399 SAT Score 1,400-1,599 SAT Score 1,400-1,599 1,600-1,799 1,600-1,799 1,800-1,999 1,800-1,999 Show a histogram. Begin with the first class starting at 800 and use a class width of 200. 2,000-2,199 2,000-2,199 i Frequency N 10 8 6 12 800-999 1,000-1,199 1,200-1,399 SAT Score 1,400-1,599 1,600-1,799 1,800-1,999 2,000-2,199 Frequency 10 N 12 800-999 1,000-1,199 1,200-1,399 SAT Score 1,400-1,599 1,600-1,799 1,800-1,999 2,000-2,199(b) Comment on the shape of the distribution. O The distribution is heavily skewed to the left, 0 The distribution is heavily skewed to the right. (9 The distribution is nearly symmetrical. i (c) What other observations can be made about the SAT scores based on the tabular and graphical summaries? 11 X of 30 of the scores are between 1,400 and 1,599. The maximum v X SAT score looks to be a around 1,500. Scores below 800 or above 2,200 are unusual V Submit Answer Consumer complaints are frequently reported to the Better Business Bureau (BBB). Some industries against whom the most complaints are reported to the BBB are banks, cable and satellite television companies, collection agencies, cellular phone providers, and new car dealershipsn' The results for a sample of 200 complaints are contained in the le BBB. (a) Show the frequency and percent frequency of complaints by industry. Industry Frequency % Frequency Bank % Cable % Car % Cell % Collection % Total % (1:) Construct a bar chart of the percent frequency distribution. (b) Construct a bar chart of the percent frequency distribution. 70% 70% 70% 60% 60% 60% 50% 50% 50% 40% 40% 40% Percent Frequency Percent Frequency Percent Frequency 30% 30% 30% 20% 20% 20% 10% 10% 10% 0% 0% 0% Bank Cable Car Cell Collection Bank Cable Car Cell Collection Bank Cable Car Cell Collection O Industry Industry Industry i 70% 60% 50% 40% Percent Frequency 30% 20% 10% 0% Bank Cable Car Cell Collection O Industry (c) Which industry had the highest number of complaints? O banks O cable and satellite television companies new car dealerships O cellular phone providers O collection agenciesO collection agencies (d) Comment on the percentage frequency distribution for complaints. (Select all that apply.) B Cell phone providers and collection agencies had about the same number of complaints. Cl Banks and collection agencies had about the same number of complaints. Cl Cable and satellite television companies and cell phone providers had about the same number of complaints. D New car dealers and cell phone providers had about the same number of complaints. C1 New car dealers and cable and satellite television companies had about the same number of complaints. Cl Banks and cable and satellite television companies had about the same number of complaints. Submit Answer Suppose a university has only one women's soball scholarsh 15 77 25 175 40 252 remai ng for the coming year. The nal two players that the university 5 cans ering are All on Fealey and Emily Janson. The coac ng staff has concluded that the speed and defensive skills are virtually Identical for the two players, and that the nal decision will be based on which player has the best batting average. Crosstabulatlons of each player's batting performance In their junior and senior years of high school are as follows. A player's batting average is computed by dividing the number of hits a player has by the total number of at-bats. Batting averages are represented as a decimal number with three places after the decimal. (Round your answers to three decimal places.) (a) Calculate the batting average for each player In her junior year. Allison Fealey Emily Jansen Calculate the batting average Allison Fealey Emily Jansan of each player in her senior year. Using this analysis, which player should be awarded the scholarship? Explain. Because Select V had the higher batting average in both her junior year and senior year, Select v (b) Combine or aggregate the data for the junior and senior years into one crosstabulation. should receive the scholarship offer. (b) Combine or aggregate the data for the junior and senior years into one crosstabulation. Calculate each player's batting average for the combined two years. (Round your answers to three decimal places.) Allison Fealey Emily Janson Using this analysis, which player should be awarded the scholarship? Explain. Because Select v has the higher batting average over the combined junior and senior years, Select V should receive the scholarship offer. (c) Are the recommendations you made in parts (a) and (b) consistent? Explain any apparent inconsistencies. The recommendations in parts (a) and (b) -SelectV consistent. This is an example of conclusion can be when the crosstabulations are grouped or aggregated. -Select-- . It shows that in interpreting the results based upon separate or un-aggregated crosstabulations, the Sbll

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