Asked by
Arissa Kumasi
on Oct 11, 2024
Verified
Suppose you have obtained a confidence interval for μ,but wish to obtain a greater degree of precision.Which of the following would result in a narrower confidence interval?
I.Increasing the sample size while keeping the confidence level fixed
II.Decreasing the sample size while keeping the confidence level fixed
III.Increasing the confidence level while keeping the sample size fixed
IV.Decreasing the confidence level while keeping the sample size fixed
A) I,III
B) III,IV
C) II,III
D) II,IV
E) I,IV
Confidence Interval
An array of values, pulled from sampling data, envisioned to enclose the value of a mysterious population parameter.
Sample Size
The count of measurements or instances contained within a data sample for statistical analysis.
Confidence Level
The percentage of confidence intervals that would include the true population parameter if you drew and computed a confidence interval for many samples.
- Ascertain the size of a sample and its effect on statistical conclusions.
- Fathom the concept of margin of error and how it impacts the sharpness of confidence intervals.
Verified Answer
AR
Learning Objectives
- Ascertain the size of a sample and its effect on statistical conclusions.
- Fathom the concept of margin of error and how it impacts the sharpness of confidence intervals.