A 90% conļ¬dence interval for the mean of a population is reported as (4.8, 11.2). What is the best point estimate of the mean ? Group of answer choices 7.5 8.0 8.5 9.0
Added by Kenneth S.
Step 1
Step 1: Recognize that the best point estimate for the population mean is the midpoint of the confidence interval. Show moreā¦
Show all steps
Close
Your feedback will help us improve your experience
James Kiss and 61 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
A 90% confidence interval for the mean of a population is reported as (4.8, 11.2). What is the best point estimate of the mean?
Joanna Q.
Ivan K.
The following sample data are from a normal population: 10, 8, 12, 15, 13, 11, 6, 5. (a) What is the point estimate of the population mean? (b) What is the point estimate of the population standard deviation? (Round your answer to three decimal places.) (c) With 95% confidence, what is the margin of error for the estimation of the population mean? (Round your answer to one decimal place.) (d) What is the 95% confidence interval for the population mean? (Round your answer to one decimal place.)
Jerelyn N.
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