How does energy intake compare to energy expenditure?

One aspect of this issue was considered in the article

“Measurement of Total Energy Expenditure by the Doubly Labelled Water Method in Professional Soccer Players” (J.

of Sports Sciences, 2002: 391–397), which contained the accompanying data (MJ/day).

Player 1 23 4567 Expenditure 14.4 12.1 14.3 14.2 15.2 15.5 17.8 Intake 14.6 9.2 11.8 11.6 12.7 15.0 16.3 Test to see whether there is a significant difference between intake and expenditure. Does the conclusion depend on whether a significance level of .05, .01, or .001 is used?