Question: With reference to Exercise 14.45, construct a 98% confidence interval for the regression coefficient Î². In exercise The following data pertain to the chlorine residual

With reference to Exercise 14.45, construct a 98% confidence interval for the regression coefficient Î².
In exercise
The following data pertain to the chlorine residual in a swimming pool at various times after it has been treated with chemicals:

(a) Fit a least squares line from which we can predict the chlorine residual in terms of the number of hours since the pool has been treated with chemicals.
(b) Use the equation of the least squares line to estimate the chlorine residual in the pool five hours after it has been treated with chemicals.

Number of hours Chlorine residual (parts per million) 1.8 1.5 1.4 1.1 1.1 0.9 8 10 12

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