Question 6 0 / 2 Pts Among a random sample of 256 students, 0.69 proportion prefer Macs to Windows laptops, what is a lower bound for a 95% condence interval for the preference of Macs to Windows for this population of students? Round your answer to 2 decimal places, and answer as a decimal, not a percentage. Please use the following z-scores: o z-score for a 99% Cl = 2.58 o z-score for a 98% Cl = 2.33 o z-score fora 95% Cl = 1.96 o z-score for a 90% Cl = 1.64