Question 923322
98 percent level of confidence
critical value z =  2.326
ME = 1 = 2.326(7/sqrt(n))
1 = 2.326(7/sqrt(n))
n = (2.326•7)^2 = 265
round Up to next whole number: 266
..........
 = CI	z = value
90%	z =1.645
92%	z = 1.751
95%	z = 1.96
98%	z = 2.326
99%	z = 2.576