The accurate statements include: If 200 students were surveyed, then 28 students would select art as their favorite subject. If 400 students were surveyed, 64 would opt for social studies.
In a two-tailed test where the p-value stands at 0.0275, it indicates that with a threshold of 0.025, we should dismiss the hypothesis asserting equal proportion. This conclusion follows from p = 0.0275 in line with the guideline P-value < p.
Among the options provided, the correct choice is: D 7y^4-13x^3 inches
