Asked by
Lenny Penny
on Oct 19, 2024
Verified
What is needed to compute a sample size,n,to obtain a confidence interval with a specified margin of error,m?
A) Standard deviation,m,and z*
B) Sample mean,Standard deviation,m,and z*
C) m and z*
D) Population mean,standard deviation,m,and z*
Sample Size
The number of observations or data points collected from a larger population for the purpose of statistical analysis.
Confidence Interval
A set of values gathered from sample statistics that is presumed to hold the value of an undetermined population parameter.
Margin Error
An expression of the amount of random sampling error in a survey's results, which describes the range within which the true value lies with a certain level of confidence.
- Understand the influence of sample size and standard deviation on confidence intervals and the margin of error.
- Understand the impact of a larger sample size in diminishing the margin of error at a specified confidence level.
- Understand the interconnection among sample size, standard deviation, and the z* value in the calculation of the margin of error.
Verified Answer
AS
Learning Objectives
- Understand the influence of sample size and standard deviation on confidence intervals and the margin of error.
- Understand the impact of a larger sample size in diminishing the margin of error at a specified confidence level.
- Understand the interconnection among sample size, standard deviation, and the z* value in the calculation of the margin of error.