Predictors in a sample
In a multiple regression with six predictors in a sample of 67 U.S. cities, what would be the critical value for an F test of overall significance at = .05?
2.18
2.37
2.25
2.29
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A disadvantage of Excel's Data Analysis regression tool is that it expects the independent variables to be in a block of contiguous columns so you must delete a column if you want to eliminate a predictor from the model.
Which Excel function will provide the p-value for overall significance if a regression has 75 observations and 5 predictors and gives an F test statistic Fcalc = 3.67?
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How many different kinds of circuits should be selected for employ in the experiment in order to obtain an alpha=.01 test having power of at least 0.90 whenever standard deviation in the Types of circuits is greater than 2.1 milliseconds?
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