>>13048060>A) 256, this is dead simple google minimum sample size pop proportion formula>B) not gonna do the math but this shit is easily searchablep = 60/250
n = 250
p +- 1.96*sqrt(p*(1-p)/n)
>C) this is a weird question, you can always use the CLT for large samples like this>D) Same as part b but change p and n>E) Same as part b, change the values 
