g The height (in inches) of adult men in the United States is believed to be Normally distributed with mean μ μ . The average he
ight of a random sample of 25 American adult men is found to be ¯ x = 69.72 x¯=69.72 inches, and the standard deviation of the 25 heights is found to be s = 4.15 s=4.15 . A 90% confidence interval for μ μ is: