The personnel department of a large manufacturing firm selected a random sample

Question

The personnel department of a large manufacturing firm selected a random sample of 23 workers. The workers were interviewed and given several tests. On the basis of the test results, the following variables were investigated: X = manual dexterity score, X3 = mental aptitude score, and X4 = personnel assessment score. Subsequently, the workers were observed in order to determine the average number of units of work completed (Y) in given time period for each worker. Regression analysis yielded these results: The quantities in parentheses are the standard errors of the regression coefficients. The standard error of the regression is 25, and the standard deviation of the dependent variable is 50. The F-statistic in the multiple regression model could be said to test for the presence of serial correlation. Test for the presence of the first - order autocorrelation. Test for the significance of the R - squared statistic. Test for data non - linearity. All of the above.

Explanation / Answer

F test used to test the significance of the R squared statistic.

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