An article claims that 12% of trees are infested by a bark beetle. A random sample of 1,000 trees were tested for traces of the infestation and found that 127 trees were affected. z equals fraction numerator p with hat on top minus p over denominator square root of begin display style fraction numerator p q over denominator n end fraction end style end root end fraction Using the formula and data provided, what is the value of the z-test statistic? Answer choices are rounded to the hundredths place. a.) 0.25 b.) 0.50 c.) 0.35 d.) 0.70