关于standard error的计算？

问题如下：

The following exhibit is the results of a regression of the monthly return for an electric utility equity index for the previous 203 months (the dependent variable) against the monthly returns for the S&P 500 Index and the difference between the monthly returns on long-term U.S. government bonds and one-month U.S. Treasury bills (SPREAD) (the two independent variables).

Hamilton wants to test the null hypothesis that the coefficient on SPREAD is equal to 1 against the alternative hypothesis that it is not equal to 1. Based on the results in Exhibit 1, the value of the test statistic relating to Hamilton’s null hypothesis about the value of the coefficient on SPREAD is closest to:

选项：

4.28

0.24

0.11

解释：

The null hypothesis is H₀: b_spread= 1.

The calculated value of the t-statistic is t = (1.0264 – 1.0)/standard error.

The standard error is 1.0264/4.28 = 0.24.

The calculated value for t = (1.0264 – 1.0)/0.24 = 0.11.