Question: Perform polynomial regression of third degree for the temperature data of Example (12.24). Choose a suitable error level , determine a confidence interval for the

Perform polynomial regression of third degree for the temperature data of Example

(12.24). Choose a suitable error level ˛, determine a confidence interval for the leading coefficient

3 of the regression polynomial, and test the one-sided null hypothesis H0 W 3 0 against H1 W 3 > 0. Use appropriate software to perform the calculations.

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