Question

In: Statistics and Probability

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 69 71 76 83 72 78 74 80 82
y, Fineness 4.3 4.7 4.7 4.0 4.1 4.0 4.8 4.7 4.3 4.5


(b) Find the 98% confidence interval for the mean measurement of fineness for fibers with a strength of 70.

Lower Limit
Upper Limit


(c) Find the 98% prediction interval for an individual measurement of fineness for fibers with a strength of 70.

Lower Limit
Upper Limit

Solutions

Expert Solution

The statistical software output for this problem is :

(b)

Lower limit = 4.03

Upper limit = 5.01

(c)

Lower limit = 3.48

Upper limit = 5.56


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