# 1.) two thousand frequent business travelers are asked which

1.) Two thousand continual transaction travelers are asked which midwestern city they prefer: Indianapolis, Saint Louis, Chicago, or Milwaukee. 107 approved Indianapolis best, 454 approved Saint Louis, 1370 approved Chicago, and the balance preferred Milwaukee. Develop a abundance board and a referring-to abundance board to incorporebuke this knowledge. (Round referring-to abundance to 3 decimal attributes.) City Frequency Relative Frequency Indianapolis St. Louis Chicago Milwaukee 2.) In June an investor purchased 350 portion-outs of Oracle (an knowledge technology assembly) supply at $22 per portion-out. In August she purchased an joined 420 portion-outs at $25 per portion-out. In November she purchased an joined 510 portion-outs at $31 per portion-out. What is the weighted medium consume per portion-out? (Round your exculpation to 2 decimal attributes. Omit the "$" apexedion in your repartee.) The weighted medium is $ 3. Sally Reynolds sells authentic condition adesire the coastal area of Northern California. Adown is the completion sum of her embassys earned gone 2000. Year Amount (thousands) 2000 $237.51 2001 233.8 2002 206.97 2003 248.14 2004 164.69 2005 292.16 2006 269.11 2007 225.57 2008 255.33 2009 202.67 2010 206.53 Find the medium, median, and regulation of the embassys she earned for the 11 years. (Round your exculpations to 2 decimal attributes.) Mean Median Mode 4.The unemployment rebuke in the particularize of Alaska by month is given in the board adown: Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 7.00 7.20 6.60 8.80 7.40 7.60 7.50 8.30 7.10 7.20 7.80 8.60 (a) What is the arithmetic medium of the Alaska unemployment rebukes? (Round your exculpation to 2 decimal attributes.) Arithmetic medium (b) Find the median and the regulation for the unemployment rebukes. (Round your exculpations to 2 decimal attributes.) Median Mode 5.) A scantling of the personnel files of view employees at the Pawnee dregs of Acme Carpet Cleaners, Inc., biblical that during the conclusive six-month date they obsolete the succeedingcited enumerate of days due to disorder: 5 5 4 4 1 2 0 6 A scantling of view employees during the similar date at the Chickpee dregs of Acme Carpets biblical they obsolete the succeedingcited enumerate of days due to disorder. 2 1 0 10 2 2 3 0 (a) Calculate the stroll, medium and medium deflexions for the Pawnee dregs and the Chickpee dregs.(Round medium and medium deflexion to 2 decimal attributes.) Pawnee location Chickpee location Range Mean Medium deflexion (b-1) Based on the scantling premise, which dregs has fewer obsolete days? (b-2) Based on the scantling premise, which dregs has hither discrepancy? 6. The annual fame of Dennis Industries cited these leading hues per niggardly portion-out for the elapsed 5 years: $2.29, $1.18, $2.22, $4.42, and $3.4. (a) What is the arithmetic medium leading hues per portion-out of niggardly supply? (Round your exculpation to 2 decimal attributes.) Arithmetic medium (b) What is the disagreement? (Round your exculpation to 2 decimal attributes.) Variance The division of the weights of a scantling of 1,500 consignment containers is symmetric and bellshaped. (a) According to the Empirical Rule, what percent of the weights conciliate lie among and ?(Omit the "%" apexedion in your repartee.) Percent of the weights % (b) According to the Empirical Rule, what percent of the weights conciliate lie among and ? (Round your exculpation to 2 decimal attributes. Omit the "%" apexedion in your repartee.) Percent of the weights % (c) Below ? (Round your exculpation to 2 decimal attributes. Omit the "%" apexedion in your repartee.) Percent of the weights % 7.) The IRS was assiduous in the enumerate of special tax forms quick by inferior accounting steadfasts. The IRS strayly scantlingd 51 open accounting steadfasts succeeding a while 10 or fewer employees in the DallasFort Worth area. The succeedingcited abundance board fames the results of the con-over. (Round your exculpations to 2 decimal attributes.) Number of Clients Frequency 15 up to 30 2 30 up to 45 13 45 up to 60 23 60 up to 75 8 75 up to 90 5 Mean Criterion deflexion 8. The succeedingcited stem-and-leaf chart from the MINITAB software parades the enumerate of units effected per day in a deedory. 1 3 7 1 4 2 5 6 9 6 0133589 7 7 0236788 9 8 56 7 9 00156 2 10 38 (Leave no cells broad, be unmistakable to nothing whenever insist-upond.) (a) How multifarious days were thoughtful? (b) How multifarious observations are in the primitive assort? (c) What are the partiality compute and climax computes? The partiality is , the enlightenedst is (d) List the objective computes identical to the conclusive two entries in the fourth row. (e) How multifarious computes are there in the remedy row? (f) How multifarious computes are hither than 70? (g) How multifarious computes are 80 or over? (i) How multifarious computes are among 60 and 89, additive? 9. The Thomas Supply Company, Inc. is a distributor of gas-powered generators. As succeeding a while any transaction, the elongation of season customers engage to pay their invoices is relevant. Listed adown, arranged from inferiorest to enlightenedst, is the season, in days, for a scantling of The Thomas Supply Company, Inc. invoices. 13 13 13 20 26 28 30 33 34 34 35 35 36 37 38 41 41 41 45 46 47 47 49 52 53 55 56 62 67 82 (Round your exculpations to 2 decimal attributes.) (a) Determine the primitive and third quartiles. Q1 = Q3 = (b) Determine the remedy decile and the viewh decile. D2 = D8 = (c) Determine the 67th percentile. 10. Listed adown are the embassys earned ($000) conclusive year by the sales representatives at the Furniture Patch, Inc. Assume that this is scantling premise (i.e., reckon a scantling criterion deflexion). 3.9 6.1 7.5 11.2 12.9 13.6 15.3 15.8 16.9 17.4 18.3 22.3 36.5 43.2 82.9 (a) Determine the medium, median, and the criterion deflexion. (Round your exculpations to 2 decimal attributes.) Mean Median Criterion deflexion (b) Determine the coefficient of skewness using Pearson's system. (Round your exculpation to 3 decimal attributes.) Coefficient of skewness (c) Determine the coefficient of skewness using the software system. (Round your exculpation to 2 decimal attributes.) Coefficient of skewness 11. The events and are mutually unpopular. Suppose and (a) What is the affectlihood of either or occuring? (Round your exculpation to 2 decimal attributes.) Likelihood of either or (b) What is the affectlihood that neither nor conciliate happen? (Round your exculpation to 2 decimal attributes.) Likelihood of neither nor 12. A con-over of 203 advertising steadfasts biblical their pay succeeding taxes: Pay succeeding Taxes Number of Firms Underneath $1 pet 106 $1 pet to $20 pet 51 $20 pet or over 46 (a) What is the affectlihood an advertising steadfast chosen at stray has underneathneath $1 pet in pay succeeding taxes? (Round your exculpation to 2 decimal attributes.) Probability (b-1) What is the affectlihood an advertising steadfast chosen at stray has either an pay among $1 pet and $20 pet, or an pay of $20 pet or over? (Round your exculpation to 2 decimal attributes.) Probability (b-2) What government of affectlihood could be applied? Government of Probability 13. A ward is insertion two ways, truth and math. The affectlihood the ward conciliate by the truth way is .59, and the affectlihood of bying the math way is .74. The affectlihood of bying twain is .41. What is the affectlihood of bying at smallest one? (Round your exculpation to 2 decimal attributes.) Probability 14. All Seasons Plumbing has two use barters that continually need recover. If the affectlihood the primitive barter is suited is .79, the affectlihood the remedy barter is suited is .60, and the affectlihood that twain barters are suited is .43: What is the affectlihood neither barter is suited? (Round your exculpation to 2 decimal attributes.) Probability 15. The belief province of Lion’s Province Store in Anaheim, California, fameed that 28 percent of their sales are specie or bridle, 30 percent are hired succeeding a while a belief card and 42 percent succeeding a while a something-due card. Twenty percent of the specie or bridle purchases, 85 percent of the belief card purchases, and 70 percent of the something-due card purchases are for over than $50. Ms. Tina Stevens honorable purchased a new robes that consume $120. What is the affectlihood she hired specie or bridle? (Round your exculpation to 3 decimal attributes.) Probability 16. Solve the succeedingcited: (a) (b) 9P5 = (c) 9C6 = 17. An overnight apexed assembly must embrace seven cities on its track. How multifarious incongruous tracks are practicable, coxcombical that it matters in which dispose the cities are embraced in the routing? Enumerate of incongruous tracks 18.) The manager of admissions at Kinzua University in Nova Scotia loved the division of ward admissions for the sink semester on the premise of elapsed test. Admissions Probability 1,080 0.6 1,440 0.1 1,640 0.3 (1) What is the expected enumerate of admissions for the sink semester? Expected enumerate of admissions (2) Compute the disagreement and the criterion deflexion of the enumerate of admissions. (Round your criterion deflexion to 2 decimal attributes.) Variance Criterion deflexion 19. The Downtown Parking Authority of Tampa, Florida, fameed the succeedingcited knowledge for a scantling of 228 customers on the enumerate of hours cars are parked and the sum they are pregnant. Number of Hours Frequency Amount Charged 1 15 $ 3 2 35 6 3 47 11 4 40 16 5 35 22 6 17 25 7 6 27 8 33 29 228 (a) Convert the knowledge on the enumerate of hours parked to a affectlihood division. (Round your exculpations to 3 decimal attributes.) Hours Probability 1 2 3 4 5 6 7 8 (b-1) Find the medium and the criterion deflexion of the enumerate of hours parked. (Round your interposed computes and last exculpations to 3 decimal attributes.) Mean Criterion deflexion (b-2) How desire is a regular customer parked? (Round your exculpation to 3 decimal attributes.) The regular customer is parked for hours (c) Find the medium and the criterion deflexion of the sum pregnant. (Round your interposed computes and last exculpations to 3 decimal attributes.) Mean Criterion deflexion 20. In a binomial aspect, n = 7 and .20. Detail the probabilities of the succeedingcited events using the binomial formula. (Round your exculpations to 4 decimal attributes.) (a) x = 5 Probability (b) x = 6 Probability 21. Industry criterions insinuate that 8 percent of new vehicles insist-upon guarantee use succeeding a whilein the primitive year. Jones Nissan in Sumter, South Carolina, sold 10 Nissans yesterday. (Round your Medium exculpation to 2 decimal attributes and the other exculpations to 4 decimal attributes.) (a) What is the affectlihood that none of these vehicles insist-upons guarantee use? Probability (b) What is the affectlihood accurately one of these vehicles insist-upons guarantee use? Probability (c) Determine the affectlihood that accurately two of these vehicles insist-upon guarantee use. Probability (d) Compute the medium and criterion deflexion of this affectlihood division. Medium µ Criterion deflexion σ 22. In a binomial division, and . Discover the probabilities of the succeedingcited events. (Round your exculpations to 4 decimal attributes.) (a) Probability (b) Probability (c) Probability 23. Keith’s Florists has 16 endowment barters, used primarily to free prides and pride arrangements in the Greenville, South Carolina, area. Of these 16 barters, 8 possess thicket drifts. A scantling of 5 barters is strayly chosen. What is the affectlihood that 2 of those tested possess insufficient thickets? (Round your exculpation to 4 decimal attributes.) Probability 24. The amusement detaild Lotto sponsored by the Louisiana Lottery Embassy pays its enlightenedst plunder when a contestant matches all 7 of the 36 practicable enumerates. Assume there are 36 ping-pong balls each succeeding a while a one enumerate among 1 and 36. Any enumerate answers solely uninterruptedly, and the engaging balls are chosen succeeding a whileout repossession. (a) The embassy fames that the affectlihood of matching all the enumerates are 1 in 8,347,680. What is this in provisions of affectlihood? (Round your exculpation to 8 decimal attributes.) Probability (b) Use the hypergeometric formula to discover this affectlihood. The lottery embassy too pays if a contestant matches 5 or 6 of the 7 engaging enumerates. Hint: Divide the 36 enumerates into two groups, engaging enumerates and nonengaging enumerates. (Round your exculpation to 8 decimal attributes.) Probability (c) Find the affectlihood, again using the hypergeometric formula, for matching 5 of the 7 engaging enumerates.(Round your exculpation to 8 decimal attributes.) Probability (d) Find the affectlihood of matching 6 of the 7 engaging enumerates. (Round your exculpation to 8 decimal attributes.) Probability 25. n a Poisson division, . (Round your exculpations to 4 decimal attributes.) (a) What is the affectlihood that ? Probability (b) What is the affectlihood that ? Probability 26. It is loved that .48 percent of the overcomeers to the Customer Use province of Dell Inc. conciliate entertain a assiduous apexedional. What is the affectlihood that of today's 1,400 overcomeers at smallest 5 entertaind a assiduous apexedional? Use the poisson admittance to the binomial. (Round your exculpation to 4 decimal attributes.) Probability 27. Assume a binomial affectlihood division succeeding a while and . Compute the succeedingcited: (Round all zvalues to 2 decimal attributes.) (a) The medium and criterion deflexion of the stray changeable. (Round your "σ" to 4 decimal attributes and medium to 1 decimal attribute.) μ σ (b) The affectlihood that X is 20 or over. (Use the sphericaled computes institute overhead. Spherical your exculpation to 4 decimal attributes.) Probability (c) The affectlihood that X is 16 or hither. (Use the sphericaled computes institute overhead. Spherical your exculpation to 4 decimal attributes.) Probability 28. For the most new year suited, the medium annual consume to wait-on a retired university in the United States was $20,332. Assume the division of annual consumes supervenes the typical affectlihood division and the criterion deflexion is $4,250. Ninety-nine percent of all wards at retired universities pay hither than what sum? (Round z compute to 2 decimal attributes and your last exculpation to the rectilinear perfect enumerate. Omit the "$" apexedion in your repartee.) Amount $ 29. Assume that the medium hourly consume to operebuke a commercial airplane supervenes the typical division succeeding a while a medium of $2,050 per hour and a criterion deflexion of $195. What is the open consume for the smallest 4 percent of the airplanes? (Round z compute to 2 decimal attributes. Omit the "$" apexedion in your repartee.) Open consume $ 30. The enumerate of viewers of American Idol has a medium of 32 pet succeeding a while a criterion deflexion of 4 pet. Assume this division supervenes a typical division. What is the affectlihood that present week's parade conciliate: (a) Have among 36 and 43 pet viewers? (Round z-score calculation to 2 decimal attributes and your last exculpation to 4 decimal attributes.) Probability (b) Have at smallest 29 pet viewers? (Round z-score calculation to 2 decimal attributes and your last exculpation to 4 decimal attributes.) Probability (c) Exceed 47 pet viewers? (Round z-score calculation to 2 decimal attributes and your last exculpation to 4 decimal attributes.) Probability 31. A typical population has a medium of 22 and a criterion deflexion of 5. (a) Compute the z compute associated succeeding a while 25 (Round your exculpation to 2 decimal attributes.) Z (b) What symmetry of the population is among 22 and 25? (Round z-score calculation to 2 decimal attributes and your last exculpation to 4 decimal attributes.) Proportion (c) What symmetry of the population is hither than 18? (Round z-score calculation to 2 decimal attributes and your last exculpation to 4 decimal attributes.) Proportion 32. The medium of a typical affectlihood division is 360; the criterion deflexion is 10. (a) About 68 percent of the observations lie among what two computes? Compute 1 Compute 2 (b) About 95 percent of the observations lie among what two computes? Compute 1 Compute 2 (c) Practically all of the observations lie among what two computes? Compute 1 Compute 2 33. Customers experiencing technical difficulty succeeding a while their internet cable hookup may overcome an 800 enumerate for technical buttress. It engages the technician among 30 remedys to 15 minutes to direct the drift. The division of this buttress season supervenes the invariable division. (a) What are the computes for a and b in minutes? (Do not spherical your interposed calculations. Spherical your exculpation to 1 decimal attribute.) a b (b-1) What is the medium season to direct the drift? (Do not spherical your interposed calculations. Spherical your exculpation to 2 decimal attributes.) Mean (b-2) What is the criterion deflexion of the season? (Do not spherical your interposed calculations. Spherical your exculpation to 2 decimal attributes.) Criterion deflexion (c) What percent of the drifts engage over than 5 minutes to direct? (Do not spherical your interposed calculations. Spherical your exculpation to 2 decimal attributes. Omit the "%" apexedion in your repartee.) Percent % (d) Suppose we endeavor to discover the average 50 percent of the drift-solving seasons. What are the end apexs of these two seasons? (Do not spherical your interposed calculations. Spherical your exculpations to 3 decimal attributes.) End apex 1 End apex 2 34. The noncommunication consume of Schnur Sporting Goods Inc. niggardly supply is invariablely chosen among $22 and 36 per portion-out. What is the affectlihood that the supply consume conciliate be: (a) More than $29? (Round your exculpation to 4 decimal attributes.) Probability (b) Less than or similar to $27? (Round your exculpation to 4 decimal attributes.) Probability 35. A inspect is entity planned to detail the medium sum of season strengthening executives wake television. A convoy inspect involved that the medium season per week is 13 hours, succeeding a while a criterion deflexion of 2.0 hours. It is desired to love the medium viewing season succeeding a whilein one-quarter hour. The 90 percent smooth of reliance is to be used. How multifarious executives should be inspected? (Round up your exculpation to the present perfect enumerate.) Enumerate of executives 36. A population is loved to possess a criterion deflexion of 8. We deficiency to love the population medium succeeding a whilein 2, succeeding a while a 90 percent smooth of reliance. How enlightened a scantling is insist-upond? (Round up your exculpation to the present perfect enumerate.) Scantling insist-upond is . 37 The Fox TV network is regarding replacing one of its prime-season offense research parades succeeding a while a new family-oriented comedy parade. Before a last judgment is made, network executives embassy a scantling of 380 viewers. Succeeding viewing the comedy, 200 involved they would wake the new parade and insinuateed it reattribute the offense research parade. (a) Love the compute of the population symmetry. (Round your exculpation to 3 decimal attributes.) Estimated population symmetry (b) Develop a 95 percent reliance period for the population symmetry. (Round your exculpations to 3 decimal attributes.) The reliance period is among and . 38. The U.S. Dairy Industry deficiencys to love the medium year-by-year milk expenditure. A scantling of 29 vulgar reveals the medium year-by-year expenditure to be 55 gallons succeeding a while a criterion deflexion of 22 gallons. (a-1) What is the compute of the population medium? Population medium (a-2) What is the best love of this compute? Love population medium (c) For a 90 percent reliance period, what is the compute of t? (Round your exculpation to 3 decimal attributes.) Compute of t (d) Develop the 90 percent reliance period for the population medium. (Round your exculpations to 3 decimal attributes.) Reliance period for the population medium is and . (e) Would it be grave to infer that the population medium is 52 gallons? 39. Bob Nale is the possessor of Nale's Quick Fill. Bob would affect to love the medium enumerate of gallons of gasoline sold to his customers. Assume the enumerate of gallons sold supervenes the typical division succeeding a while a population criterion deflexion of 2 gallons. From his history, he chosens a stray scantling of 63 sales and discovers the medium enumerate of gallons sold is 8.59. (Round your exculpations to 2 decimal attributes.) (a) The apex love of the population medium is (b) The 95 percent reliance period for the population medium is among and . 40 A scantling of 10 observations is chosen from a typical population for which the population criterion deflexion is notorious to be 4. The scantling medium is 20. (Round your exculpations to 3 decimal attributes.) (a) The criterion fallacy of the medium is . (c) The 99 percent reliance period for the population medium is among and . 41. The schism for a one-bedroom room in Southern California supervenes the typical division succeeding a while a medium of $2,200 per month and a criterion deflexion of $290 per month. The division of the monthly consumes does not supervene the typical division. In deed, it is unconditionally skewed. What is the affectlihood of chosening a scantling of 70 one-bedroom rooms and discovering the medium to be at smallest $2,100 per month? (Round z compute to 2 decimal attributes and last exculpation to 4 decimal attributes.) Probability 42. A typical population has a medium of 57 and a criterion deflexion of 14. You chosen a stray scantling of 16. Compute the affectlihood the scantling medium is (Round z computes to 2 decimal attributes and last exculpations to 4 decimal attributes): (a) Greater than 60. Probability (b) Less than 56. Probability (c) Between 56 and 60. Probability 43. Listed adown are the 35 members of the Metro Toledo Automobile Dealers Association. We would affect to love the medium return from importer use provinces. (a) We deficiency to chosen a stray scantling of five importers. The stray enumerates are: 19, 78, 28, 34, 32, 37, 45, 48, 79, 89, 11 and 45. Which importers would be embraced in the scantling? (Enter the enumerates as they answer.) (c) A scantling is to consist of perfect sixth importer. The enumerate 8 is chosen as the starting apex. Which importers are embraced in the scantling?