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. O A. The interpretation is incorrect. 100% of the cows studied gained between 45 and 67 pounds. O B. The interpretation is incorrect. The confidence interval estimates the sample mean, not the population mean. O C. The interpretation is correct, assuming all conditions and assumptions are met. O D. The interpretation is incorrect. The confidence interval is for the population mean, not the individual cows in the study. b) One is 95% sure that a cow fed this supplement will gain between 45 and 67 pounds. Is this a correct interpretation of the confidence interval? Choose the correct answer below. A. The interpretation is correct, assuming all conditions and assumptions are met. O B. The interpretation is incorrect. The confidence interval estimates the sample mean, not an individual value. O C. The interpretation is incorrect. One knows that a cow fed this supplement will gain between 45 and 67 pounds. O D. The interpretation is incorrect. The confidence interval is not for individual cows. c) One is 95% sure that the average weight gain among the cows in this study was between 45 and 67 pounds. Is this a correct interpretation of the confidence interval? Choose the correct answer below. A. The interpretation is incorrect. One knows the average weight gain of all cows will be 56 pounds. O B. The interpretation is correct, assuming all conditions and assumptions are met. O C. The interpretation is incorrect. One knows the average weight gain in this study was 56 pounds. O D. The interpretation is incorrect. The confidence interval estimates the standard deviation of the mean, not the mean weight loss. d) The average weight gain of cows fed this supplement will be between 45 and 67 pounds 95% of the time