Which of the following is true? (Intercept) unemp Estimate -6.7142 -1.0010 Std. Error t value 5.4567 -1.23 0.8717 -1.15 Pr(>|t|) 0.2300 0.2617 df = 25 The t-value was obtained by dividing the estimate by standard error The 'unemp' coefficient is significant A t-value of -1.23 is significant None of these

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