(5 POINTS) 3) DETERMINING SAMPLE SIZE - YOU WANT TO ESTIMATE THE PERCENTAGE OF U.S. STATISTICS STUDENTS WHO GET GRADES OF B OR HIGHER. HOW MANY SUCH STUDENTS MUST YOU SURVEY IF YOU WANT 97% CONFIDENCE THAT THE SAMPLE PERCENTAGE IS OFF BY NO MORE THAN TWO PERCENTAGE POINTS?
Added by Joshua A.
Close
Step 1
S. statistics students who get grades of B or higher with a specified confidence level and margin of error. Show more…
Show all steps
Your feedback will help us improve your experience
Jainendra Ojha and 63 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
Suppose we want to estimate the proportion of college students who use stimulants to help them study. If we want to estimate this proportion to within 2% at the 95% confidence level, how many randomly selected college students must we survey?
Jainendra O.
A national political candidate has commissioned a study to determine the percentage of registered voters who intend to vote for him in the upcoming election. To have 95% confidence that the sample percentage will be within 3 percentage points of the actual population percentage, how large a simple random sample is required?
Sri K.
thoughtful
T. L.
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