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The relationship between "strength" and "fineness" of cotton fibers was the subject of a study that...

The relationship between "strength" and "fineness" of cotton fibers was the subject of a study that produced the following data. (Give your answers correct to two decimal places.)

x, Strength 76 73 69 84 70 73 73 79 72 88
y, Fineness 4.6 4.6 4.1 4.7 3.8 4.6 4.5 4.8 4.8 3.8

(a) Draw a scatter diagram. (Do this on paper. Your instructor may ask you to turn in this work.)

(b) Find the 98% confidence interval for the mean measurement of fineness for fibers with a strength of 72.

Lower Limit
Upper Limit


(c) Find the 90% prediction interval for an individual measurement of fineness for fibers with a strength of 72.

Lower Limit
Upper Limit
math   Statistics-And-Probability   
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Answer #1

Fsomm the given dota a Scattex Diagsanm 5-1 4.9- 3 9 3-5-1 フ . b- T3 433585329 69L 46 84 | 4.7 | 3948 | 7056 T 3.3 66900 、13 | 4-6 | 335.8 | 5329 13 35 539 4 39.2 624 て214.8 | 3456 | SI84 38 | 3-8 | 334.4 | TThh S 15 S-44-3 332-4 :51643(44-3 5T64-T5T* 335265 T(15)) 4.63 Cauotion of segse ss ion tine Y: 443-264x(03x No Gse con find cobxespanding varues of fimew fix shergth T2 SD-0.3てて2 SC: 3118 0 Z valce fos 98y. confidence lever:33 confidence intesval(mean-Z*Se, meon+2*S) .3 2332 +233 prediction (nesvaに(mean. (ZKS5G+/n)),heon t(PSD(G+1/n))] t (#64x0 1194(G+リ(o))

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