An article titled Statistical Approach for the Estimation of Strontium Distribution Coefficient (Environmental Science & Technology) reports

An article titled €œStatistical Approach for the Estimation of Strontium Distribution Coefficient€ (Environmental Science & Technology) reports a linear correlation coefficient of 0.55 between the strontium distribution coefficient (mL/g) and the total aluminum (mmol/100 g-soil) for soils collected from the surface throughout Japan. Consider the following data for 10 such samples.

Let Y represent the strontium distribution coefficient and X represent the total aluminum.
a. Find the equation of the line of best fit.
b. Find a 95% confidence interval for b1.
c. Explain the meaning of the interval in part b.

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S Strontium Sample Dist. Coeff. Aluum Sample Dist. Coeff. Aluminum S Strontium Total 100 120 300 250 200 225 325 310 350 400 375 385 350 6 7 500 450 445 310 4 10