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  3. the relationship between quotstrengthquot and quotfinenessquot of cotton fibers was...

Question: the relationship between quotstrengthquot and quotfinenessquot of cotton fibers was...

Question details

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 69 75 83 69 83 79 75 76 69 83
y, Fineness 3.8 4.7 4.7 4.1 3.9 4.4 4.4 4.3 4.6 4.1

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

(b) Find the 95% confidence interval for the mean measurement of fineness for fibers with a strength of 80.

Lower Limit
Upper Limit


(c) Find the 98% prediction interval for an individual measurement of fineness for fibers with a strength of 80.

Lower Limit
Upper Limit
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