Q4 biostatistics

Does playing music to dairy cattle increase their milk production? An experiment was conducted where a group of dairy cattle was divided into two groups. Music was played to one group; the control group did not have music played. The average increase in production was 2.5 L/cow over the time period in question. A 95% confidence interval for the difference (treatment - control) in mean production was computed to be (1.5, 3.5) L/cow. Which of the following statements are true? I: 95% of the cows increased their production by between 1.5 L/cow and 3.5 L/cow. II: We are 95% confident that the true increase in mean production is between 1.5 L/cow and 3.5 L/cow. lll: Because the confidence interval does not include zero, we are 95% confident that the true increase in production for all cows is 2.5 L/cow. C) a.|lonw O b. land ll only 0 c Ionly 0 d. \"I only 0 e. land |ll only