Livestock are given a special feed supplement to see if it will promote weight gain. Researchers report that the 77 cows studied gained an average of 56? pounds, and that a? 95% confidence interval for the mean weight gain this supplement produces has a margin of error of plus or minus±11 pounds. Some students wrote the following conclusions. Did anyone interpret the interval? correctly? Explain any misinterpretations. Complete parts a through e below. Question content area bottom Part 1 ?a) 95% of the cows studied gained between 45 and 67 pounds. Is this a correct interpretation of the confidence? interval? Choose the correct answer below.