Two sample intervals for means

In the fast food industry, standardization is key. Companies want their products to be as similar as possible across locations. Mr. Comte is tasked with making sure that two locations of the fast food chain Burger Buddy's have burger patties of the same size. He takes a random sample of $31$ patties from one restaurant and $35$ from the other, and constructs a $95\%$ confidence interval for the difference in mean weight (in grams) of the patties from the two restaurants. The resulting interval is $(-3.2, 6.1)$. **Assuming that all the conditions for the interval above have been met, which of the following is a true statement?** [[☃ radio 1]]