Consider a regression situation in which y = hardness of molded plastic and x =

Question

Consider a regression situation in which y = hardness of molded plastic and x = amount of time elapsed since termination of the molding process. Summary quantities included the following.

n = 16     b = 3.00     SSResid = 1236.460

(a) Calculate the estimated standard deviation of the statistic b. (Give the answers to four decimal places.)
se = ________
sb = ________

(b) Obtain a 95% confidence interval for , the slope of the true regression line. (Give the answers to two decimal places.)
( ________ , ________ )

Explanation / Answer

Consider a regression situation in which y = hardness of molded plastic and x =

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