Question

Exercise 13. 10 presented y = hardness of molded plastic and x = time elapsed since the molding was completed. Summary quantities included
a. Calculate the estimated standard deviation of the statistic
b. Obtain a 95% confidence interval for b, the slope of the population regression line.
c. Does the interval in Part (b) suggest that b has been precisely estimated? Explain.


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  • CreatedSeptember 19, 2015
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