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A company has observed that there is a linear relationship between indirect labor expense (ILE) , in dollars, and direct labor hours (DLH). Data for direct labor hours and indirect labor expense for 18 months are given in the file ILE_and_DLH.xlsx
Treating ILE as the response variable, use regression to fit a straight line to all 18 data points.
Approximately what percentage of the variation in indirect labor expenses is explained by the regression model you derived?
1) There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly. a) Determine the standard error of the proportion.
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