Asked by Robyn Brown on May 03, 2024
Verified
Which of the following affects the width of a confidence interval?
A) whether the population standard deviation is known
B) the sample mean
C) the desired level of confidence
D) the population mean
Confidence Interval
A breadth of values, taken from statistical examination of a sample, that aims to envelop the value of an unrevealed population trait.
Standard Deviation
Standard deviation is a measure of the amount of variation or dispersion in a set of values, indicating how much the individual data points diverge from the mean value.
Sample Mean
The average value calculated from a subset of a population.
- Absorb the connection between conviction degrees and the space of interval measurements.
- Recognize the implications of unknown population standard deviation on interval estimation.
Verified Answer
ZK
Zybrea KnightMay 06, 2024
Final Answer :
C
Explanation :
The width of a confidence interval is mainly affected by the desired level of confidence. A higher level of confidence will lead to a wider interval. The other options may also have some impact, but not as significant as the level of confidence.
Learning Objectives
- Absorb the connection between conviction degrees and the space of interval measurements.
- Recognize the implications of unknown population standard deviation on interval estimation.