What is the primary purpose of a confidence interval for a mean? Group of answer choices a. to estimate a sample mean b. to estimate a sample size c. to estimate population size d. to estimate a population mean
Added by Steven T.
Step 1
a. A sample mean is calculated directly from the sample data, so we don't need a confidence interval for that. b. A confidence interval is not used to estimate sample size. c. A confidence interval is not used to estimate population size. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Prashant Bana and 71 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Why is a confidence interval for the population mean often given, instead of just the point estimate, the sample mean? A. Because the point estimate, or sample mean, would be different from sample to sample B. Because the sample mean is a biased estimate of the population mean. C. Because the population mean fluctuates from sample to sample around its target, the sample mean. D. More than one of these are valid reasons.
Ana Carolina D.
What is the purpose of calculating a confidence interval? Select one: • A. To provide a range of values that has a certain large probability of containing the population parameter of interest. • B. To provide a range of values that, with a certain measure of confidence, contains the sample statistic of interest. • C. To provide a range of values that, with a certain measure of confidence, contains the population parameter of interest. • D. To provide a range of values that has a certain large probability of containing the sample statistic of interest.
Hoan N.
A confidence interval for the population mean is: A. a range of values that certainly does not contain the sample mean. B. a range of values which contains the mean of the population with certainty. C. a range of possible values of the sample mean. D. a range of values which will contain the mean of the population with a specified level of confidence.
Rashmi S.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD