(Solved): A random sample of 25 college males was obtained and each was asked to report their actual height a ...

1. A random sample of 25 college males was obtained and each was asked to report their actual height and what they wished as their ideal height. A 95% confidence interval for

µ_d = average difference between their ideal and actual heights

was (0.8 inches, 2.2 inches). Which one of the null hypotheses below can be rejected?

(a) H₀ : µ_d = 0.5

(b) H₀ : µ_d = 1.0

(c) H₀ : µ_d = 1.5

(d) H₀ : µ_d = 2.0