In: Statistics and Probability
To obtain the minimum sample size necessary to make an accurate estimate, the following information is needed: the population standard deviation must be known, the level of confidence, and the maximum error of estimate, E, must be stated. Question 4 options:
As no data is given in the question, so I will just illustrate an example ton show how to determine the minimum sample size.
Where n is the required sample size...
Refer the Z table given below in order to understand how the Z value in this case is calculated...
End of the Solution...