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

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Statistics

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

x, Strength76697176837278748082
y, Fineness4.34.74.54.04.14.05.04.94.14.3

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

(b) Find the 95% confidence interval for the mean measurement offineness for fibers with a strength of 74.

Lower Limit
Upper Limit


(c) Find the 95% prediction interval for an individual measurementof fineness for fibers with a strength of 74.

Lower Limit
Upper Limit

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