Suppose you wish to estimate a population mean based on a sample of n observations. What sample size is required if you want your estimate to be within 2 of with probability equal to 0.95 if you know the population standard deviation is 12?
A) 239
B) 196
C) 139
D) 127
E) 98

Question

Suppose you wish to estimate a population mean  based on a sample of n observations. What sample size is required if you want your estimate to be within 2 of  with probability equal to 0.95 if you know the population standard deviation  is 12?
A) 239 
B) 196 
C) 139 
D) 127 
E) 98

Quizplus · Accepted Answer

The Answer of Suppose you wish to estimate a population mean  based on a sample of n observations. What sample size is required if you want your estimate to be within 2 of  with probability equal to 0.95 if you know the population standard deviation  is 12?
A) 239 
B) 196 
C) 139 
D) 127 
E) 98

Suppose You Wish to Estimate a Population Mean Based