SOLUTION: Find the minimum sample size n needed to estimate u for the given values of​ c,o ​, and E. c=0.​95 , o=9.7 ​, and E=1 Assume that a preliminary sample has at least 30

Algebra ->  Probability-and-statistics -> SOLUTION: Find the minimum sample size n needed to estimate u for the given values of​ c,o ​, and E. c=0.​95 , o=9.7 ​, and E=1 Assume that a preliminary sample has at least 30      Log On


   

Question 1173034: Find the minimum sample size n needed to estimate u for the given values of​ c,o ​, and E.
c=0.​95 , o=9.7 ​, and E=1
Assume that a preliminary sample has at least 30 members.
n
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi, 

c=0.​95 , o=9.7 ​, and E=1

ME =%28+z%2Asigma%29%2Fsqrt%28n%29

n = %28%281.96%2A9.7%29%2F1%29%5E2%29  = 361.4+  0r 362 is the sample size needed



 = CI	z = value

90%	z =1.645

92%	z = 1.751

95%	z = 1.96

98%	z = 2.326

99%	z = 2.576