Truck Unloading Times Consider the data set of the times
Chapter 12, Problem 12.3.4(choose chapter or problem)
Truck Unloading Times Consider the data set of the times taken to unload a truck at a warehouse given in DS 12.2.2. (a) What is the standard error of 1? (b) Construct a two-sided 90% condence interval for the slope parameter 1. (c) Test the null hypothesis H0 : 1 =0. (d) Does your analysis indicate that there is evidence that the trucks take longer to unload when the temperature is higher? Can a case be made that the installation of air-conditioning will improve worker efciency?
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