If you want to be % confident of estimating the population mean to within a sampling error of and the standard deviation is assumed to be , what sample size is required?
The sample size required
Answers
Answered by
1
The two-tailed Z critical score obtained from Z table is 1.96 at 95% confidence level. Therefore, even with 1 sample, the sampling error of 66 with standard deviation of 19 can be attained with 95% confidence.
Answered by
0
Answer:
Drawing samples is the fundamental step of every study in statistics. It is imperative to be careful while determining the size of the sample to be drawn for the study from the population, because overestimation can lead to wastage of resources and underestimation can lead to wrong results.
Answer and Explanation: 1
Become a Study.com member to unlock this answer! Create your account
Given Information
Standard deviation
(σ)
=19
Sampling Error (E) =66
Level of confidence = 95%
Similar questions