The file sapphire lists observed values of Young’s modulus (g) measured at various temperatures (T ) for sapphire rods (Ku 1969). Fit a linear relatio

abondantQ

abondantQ

Answered question

2021-06-08

The file sapphire lists observed values of Young’s modulus (g) measured at various temperatures (T ) for sapphire rods (Ku 1969). Fit a linear relationship g=β0+β1t, and form confidence intervals for the coefficients. Examine the residuals.

Answer & Explanation

Clelioo

Clelioo

Skilled2021-06-09Added 88 answers

The regression line is y=628.6287753-0.6136894x.
Intervals are:
β0±sβ0{˙t22(0.025)=628.62878±13.42758{˙2.074=628.62878±27.8488
β1±sβ1{˙t22(0.025)=0.61369±0.01761{˙2.074=0.61369±0.0365

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