After feeding a special diet to 80 mice, the scientist measures their weight in grams and obtains 35 grams and 5 4 grams He states that a 90 confidence interval for Icirc frac14 is given by (a) Was the confidence interval calculated correctly If not, provide the correct result (b) Does the interval...

a Correct b We will never know whether this ...

After feeding a special diet to 80 mice, the scientist measures their weight in grams and obtains

Question:

After feeding a special diet to 80 mice, the scientist measures their weight in grams and obtains = 35 grams and 5 = 4 grams. He states that a 90% confidence interval for Î¼ is given by

(a) Was the confidence interval calculated correctly? If not, provide the correct result.
(b) Does the interval (34.26, 35. 74) cover the true mean? Explain your answer.