In a Two-Tailed Hypothesis Test in Which the Null Hypothesis $\mu$

Multiple Choice

In a two-tailed hypothesis test in which the null hypothesis is $\mu$ ₁ = $\mu$ ₂, suppose sample results lead you to reject the null hypothesis at the 5% significance level.Which of the following statements must be true?

A) $\mu$ ₁ - $\mu$ ₂ must be greater than 0.
B) you would also reject the null hypothesis at the 1% significance level.
C) the sample mean difference is statistically significant at the 5% level and above.
D) the p-value for the sample mean difference could be.075.