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2-11 E The Franklin Tire Cnmpanv is interested in demansating the durability at" its steel-belted radial tires. Tn dn thise the managers have...

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Miles (000) 61 74 63 58 59 65 58 54 58 54 59 55 64 61 68 65 61 55 57 57 54 57 58 58 66 61 53 55 67 58 55 56 65 61 53 64 60 62 68 53 60 69 58 65 65 59 59 54 61 57 52 64 63 64 61 63 57 64 58 58 59 56 58 57 63 57 63 63 69 67 68 53 56 66 62 59 61 60 72 60 64 57 64 56 58 58 66 52 65 66 63 54 57 63 61 52 58 61 56 56


Column A: Miles Driven in Alaska until tread does not meet Federal Standards

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2-11 E The Franklin Tire Cnmpanv is interested in
demansflating the durability at" its steel-belted radial
tires. Tn dn thise the managers have decided in put fnur
tires nn HI} different sport utility vehicles and drive them dtraughriut Alaska. The data cnllected indicate the number at miles {manded tn the nearest Lilli] miles} that each of the Ems traVeled hefnre cute cf the tires an the vehicle did net meet minimum federal standards far tread thickness. The data file is
called Franklin. a. Censnuet a histugram using eight classes. h. The marketing department wishes to knew the tread
life {if at least 50% at the tires. the “1% that had the
lnngest tread life. and the lnngest tread life at these
tires. Prnvide this infarmatinn tn the marketing
department. Alsn prnvide an}.r nther significant items
that. paint nut the desirability nf this line [if steel-
helted tires. c. Ccnstruet a histcgram using 12 classes. Ccmpare
vnur results with these in parts a and h. Which
disuihuticn gives better infcnnaticn about the
desirability at" this line cf steel—belted tires? Discuss-

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