People say that the price of oil depends heavily on the US dollar strength.

Suppose I'll use two variables: oil Price for the price of oil, and USDX for the US dollar index

strength.

Please teach me how to deal with empty spaces for t-values and explain the significance of each factor.

Coefficients:

Estimate Std. Error t value Pr(>|t|)

(Intercept) 120.00 8.00 <2e-16 ***

USDX -1.08 0.09 <2e-16 ***