The manager of Hudson Auto Repair would like to get a better picture of the distribution ofcosts for new parts used in the engine tune-up jobs done in the garage. A sample of 50customer invoices for tune-ups has been taken and the costs of parts, rounded to the nearestdollar, are listed below.917893577552998073 62716972896675797572 76104 746268971057765801098597886883687169 6774628298101 79105 79696273Develop a frequency distribution for these cost data. Use your own judgment to determinethe number of classes and class width that provide a distribution that will be meaningful andhelpful to the manager.a. Develop a stem-and-leaf display showing both the rank order and shape of the data set.(3)b. Develop a stretched stem-and-leaf display using two stems for each leading digit(s).(2)c. Which display is better at revealing the natural grouping and variation in the data?(1)

Frequency distribution:the range of the data is from 52 to 109, choose a class width of 10 for…

Answered: The manager of Hudson Auto Repair would…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The following data represent the living situation of newlyweds in a large metropolitan area and their annual household income. What percent of people who live with family make between $35,000 and $50,000 per year? Round to the nearest thousandth of a percent. $75,000 Own home 31 52 202 355 524 Rent home 67 66 52 23 11 Live w/ family 89 69 30 4 2 O A. 2.062% O B. 10.563% O C. 15.464% D. 35.567%
identify a column in the table with data at a ratio level
A statistics instructor asks each student in his classes to report how much the student spent on textbooks for the semester. The figures reported by students are shown below. 725 735 555 420 385 480 505 270 405 285 585 450 515 560 500 395 545 595 365 455 505 345 555 485 560 475 520 455 355 590 550 495 505 505 495 465 370 355 480 385 515 605 480 410 485 560 475 350 465 435 455 380 320 535 565 520 510 495 485 650 490 295 555 540 565 490 570 380 610 600 390 375 390 335 525 445 540 490 485 555 440 560 405 590 520 470 560 510 340 385 585 635 415 455 590 385 505 510 545 405 470 560 495 515 495 595 565 615 470 680 465 470 310 470 505 465 375 360 650 460 560 500 375 500 370 415 490 440 470 525 535 640 385 475 425 595 505 365 485 495 390 380 585 690
The bar graph at the right shows the income from summer jobs for six students at a high school. Estimate the income of the following students. a. William b. John Summer Income John Mary Susan a. Approximately how much did William make? Ryan William O A. $1500 O B. $17.00 George 1000 2000 Dollars ($) 3000 4000 O C. $1700 O D. $1900 b. Approximately how much did John make? O A. $22.00 O B. $2200 OC. $2000 O D. $2400 Click to select your answer. P Type here to search
Rank Player Money ($) Scoring Average DrDist DrAccu GIR 1 Vijay Singh 6,601,094 70.27 297.8 59.45 68.45 2 Phil Mickelson 5,188,875 70.28 295.7 55.27 65.81 3 Sergio Garcia 4,858,224 70.6 294.6 59.39 67.06 4 Kenny Perry 4,663,794 70.21 296 61.97 67.47 5 Anthony Kim 4,656,265 70.22 300.9 58.34 65.78 6 Camilo Villegas 4,422,641 70.6 293.3 58.15 64.6 7 Padraig Harrington 4,313,551 70.7 296.3 59.37 60.67 8 Stewart Cink 3,979,301 70.65 296.9 55.27 66.94 9 Justin Leonard 3,943,542 70.41 281.4 67.72 66.61 10 Robert Allenby 3,606,700 70.64 291.7 65.64 70.4 11 Jim Furyk 3,455,714 70.56 280.4 69.37 66.78 12 Ryuji Imada 3,029,363 71.13 278.6 59.64 61.39 13 Mike Weir 3,020,135 70.68 284.8 62.46 64.62 14 Geoff Ogilvy 2,880,099 71.38 292.1 58.18 61.89 15 K.J. Choi 2,683,442 71.01 286.1 61.38 65.48 16 Ben Curtis 2,615,798 70.96 284.7 67.2 63.45 17 Kevin Sutherland 2,581,311 70.22 291 61.93 68.2 18 Trevor Immelman 2,566,199 71.85 291.3 62.45 63.07 19 Ernie Els…
A company's price/earnings (P/E) ratio is the company's current stock price divided by the latest 12 months' earnings per share. Suppose the following table shows the P/E ratios for a sample of 10 Japanese companies and 12 U.S. companies. Japan United States P/E Ratio P/E Ratio 155 12 26 23 18 23 127 45 36 21 215 13 63 26 664 13 35 26 68 38 17 13 Is the difference between the P/E ratios for the two countries significant? Use the MWW test and a = 0.01 to support your conclusion. State the null and alternative hypotheses. H: Median for Japanese companies - Median for U.S. companies 20 H: Median for Japanese companies - Median for U.S. companies 0 H₂: Median for Japanese companies - Median for U.S. companies = 0 ⒸH: Median for Japanese companies - Median for U.S. companies ≤ 0 H₂: Median for Japanese companies - Median for U.S. companies > 0 OH: The two populations of P/E ratios are not identical. H: The two populations of P/E ratios are identical. ⒸH: The two populations of P/E ratios…
The following data represent the inventory figures for 55-gallon fish tanks at an aquarium. 55-Gallon Fish Tanks Inventory Amount January 1 Beginning Inventory 46 units @ $38.00 March 12 Purchase 70 units @ $36.50 July 19 Purchase 135 units @ $39.70 September 2 Purchase 65 units @ $41.75 Fish Tanks Available for Sale: Cost of Tanks Available for Sale: (a) How many fish tanks did the aquarium have available for sale? fish tanks (b) Calculate the total cost (in $) of the tanks available for sale. $ (c) If physical inventory on December 31 showed 88 tanks on hand, calculate their dollar value by using FIFO. $ (d) Calculate the value of the 88 tanks by using LIFO (in $). $ (e) Calculate the dollar value of the 88 tanks by using the average cost method (Round your answer to the nearest cent). $
Read the following prompt and complete 3.a and 3.b
The table below shows the share of income going to each quintile of the income distribution for Neverland in 1980 and 1990. Complete the table below finding the the cumulative share of income for 1980 and 1990 and answer the following: Share of income in Cumulative share of Share of income in Cumulative share of Quintiles 1980 income in 1980 1990 income in 1990 1st 7% 6.6.% 2nd 11.5% 11.5% 3rd 17% 16.3% 4th 24.8% 22.7% 5th 39.7% 42.9% a) Sketch the Perfect Equality line and the Lorenz curve for 1980 and for 1990. Don't forget to label your graph and your curves! b) According to the Lorenz curves that you draw in (a), which year had worse income inequality, 1980 or 1990? JUSTIFY your answer! NOTE: This is a file upload question. Work your answer in a piece of paper, take a picture and upload your file.
The values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. Bank A 6.3 4.3 6.6 7.0 7.0 Bank B 5.4 5.8 6.1 6.8 78 8.5 10.0 A Click the icon to view the table of Chi-Square critical values. Construct a 95% confidence interval for the population standard deviation a at Bank A O min
The table below shows the results of a survey in which 142 male and 145 female workers ages 25 to 64 were asked if they had at least one month's income set aside of emergencies.

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