Asked by
Kishan Chaudhary
on Oct 30, 2024
Verified
If a confidence interval for a population mean is found to be wider than desired,the next step should be to ________.
A) go ahead and use the confidence interval anyway
B) take another sample of the same size as the original and use the standard deviation of the combined data for the confidence interval
C) change the confidence level to a smaller value
D) calculate the appropriate sample size using the standard deviation from the first sample and take a sample of that size in order to reduce the standard error
Confidence Interval
A sequence of numerical figures, extracted from sampling data, likely to hold the value of an unobserved population parameter.
Standard Error
A measure of the dispersion or spread of sample means around the population mean in statistics.
- Comprehend how the size of the sample influences the breadth of confidence intervals.
Verified Answer
RH
Learning Objectives
- Comprehend how the size of the sample influences the breadth of confidence intervals.