Exercise 13. 10 presented y = hardness of molded plastic and x = time elapsed since the

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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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Statistics The Exploration & Analysis Of Data

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Authors: Roxy Peck, Jay L. Devore

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Question Posted: Sep 19, 2015 04:29 AM

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Exercise 13. 10 presented y = hardness of molded plastic and x = time elapsed since the

Question:

n=15 b= 2.50 SSResid= 1235.470 Σ (x- 2 = 4024.20

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a b We must assume that the conditions for inference are met df 13 The 95 confidence ...View the full answer

Statistics The Exploration & Analysis Of Data

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