SOLUTION: For a sample of size n=60, proportion p=0.35, and at a 95% confidence level, the lower bound of the proportion is... A. 0.229 B. 0.121 C. 0.175 D. 0.414

Question 86399: For a sample of size n=60, proportion p=0.35, and at a 95% confidence level, the lower bound of the proportion is...

A. 0.229
B. 0.121
C. 0.175
D. 0.414
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
For a sample of size n=60, proportion p-hat=0.35, and at a 95% confidence level, the lower bound of the proportion is...
----------------
p-hat-E is the lower bound
--------------
Since p-hat = 0.35 s=sqrt(0.35*0.65/60) = 0.06157
---------
For 95% confidence z* = 1.96
----------------
Therefore E = 1.96*0.06157 = 0.1206899..
-----------
Therefore lower bound = 0.35-0.1206899 = 0.22931..
================
Cheers,
Stan H.
RELATED QUESTIONS
For a sample of size n=60, proportion p=0.35, and 95% confidence level, the lower bound... (answered by stanbon)

For a sample of size n-100, proportion p-0.6, and at a 95% confidence level, What is the... (answered by stanbon)

For a sample of size n = 100, proportion p = 0.6, and at a 95% confidence level, the... (answered by stanbon)

A large corporation would like to estimate the proportion of their employees that have... (answered by Boreal)

Use the sample data and confidence level given below to complete parts (a) through... (answered by Glaviolette)

Use the sample data and confidence level given below to complete parts (a) through... (answered by Boreal)

Use the sample data and confidence level given below to complete parts (a) through... (answered by Glaviolette)

Find the minimum sample size that should be chosen to assure that the proportion estimate (answered by ewatrrr)