. To investigate the tradeoff between time to work and time to sleep, the following equation is estimated: Sleep=3600 +0.128 totwrk-10.08. educ+2.10. age (112.14) (0.016) (4.58) (1.35) n = 700, R² = 0.102 Standard errors are in the parentheses. 1) Is either educ or age individually significant at the 5% level? (When dF>30, the critical value of t distribution under 5% significance level is very close to 1.96.) he absolute value of the t-statistic of Beduc is (Round to the first decimal place). Thus, Oeduc is individually significant at the 5% level. Oeduc is not individually significant at the 5% level. The absolute value t-statistic of Page is (Round to the first decimal place). Thus, O age is individually significant at the 5% level. age is not individually significant at the 5% level.

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